List of the Paleozoic life of Texas

This list of the Paleozoic life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas and are between 538.8 and 252.17 million years of age.

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Aboculus – type locality for genus
  • † Aboculus robustus – type locality for species
• † Acanthocladia
  • † Acanthocladia americana
  • † Acanthocladia guadalupensis
• † Acanthoclema
• † Acanthocoryna
  • † Acanthocoryna stauroma
• † Acanthocrania
  • † Acanthocrania alta – type locality for species
  • † Acanthocrania conferta – type locality for species
  • † Acanthocrania densispina – type locality for species
  • † Acanthocrania intermedia
  • † Acanthocrania magna
  • † Acanthocrania minutispinosa – type locality for species
  • † Acanthocrania platys – type locality for species
  • † Acanthocrania regularis
  • † Acanthocrania vasta – type locality for species
• † Acanthopecten
  • † Acanthopecten carboniferus – or unidentified related form
  • † Acanthopecten coloradoensis
  • † Acanthopecten delawarensis – type locality for species
• † Acanthoplecta
  • † Acanthoplecta inopinata – type locality for species
• † Acanthorota – type locality for genus
  • † Acanthorota permiana – type locality for species
• † Acanthoschizorota – type locality for genus
  • † Acanthoschizorota variabilis – type locality for species

• 

  Restoration of the Permian amphibian Acheloma

  † Acheloma – type locality for genus
  • † Acheloma cumminsi – type locality for species
• † Achistrum
  • † Achistrum brownwoodensis – type locality for species
  • † Achistrum ludwigi – type locality for species
  • † Achistrum monochordata
• † Acolosia – type locality for genus
  • † Acolosia anomala – type locality for species
  • † Acolosia elliptica
  • † Acolosia exasperata
  • † Acolosia glabra
  • † Acolosia magna
  • † Acolosia recepta – type locality for species
• † Acosarina
  • † Acosarina baylorensis – type locality for species
  • † Acosarina mesoplatys – type locality for species
  • † Acosarina minuta – type locality for species
  • † Acosarina peculiaris – type locality for species
  • † Acosarina rectimarginata
• † Acritosia
  • † Acritosia magna
  • † Acritosia magnifica
  • † Acritosia peculiaris – type locality for species
  • † Acritosia silicica
  • † Acritosia solida
  • † Acritosia teguliferoides – type locality for species
  • † Acritosia vestibula

• 

  Fossilized teeth of the Permian-Paleocene cartilaginous fish Acrodus

  † Acrodus – tentative report
  • † Acrodus olsoni – type locality for species
  • † Acrodus sweetlacruzensis – type locality for species
• † Acrothele
• † Actinocoelia
  • † Actinocoelia maeandrina
  • † Actinocoelia verrucosa – type locality for species
• † Actinoconchus
• † Actinohymen – type locality for genus
  • † Actinohymen russelli – type locality for species
• † Actinophrentis
  • † Actinophrentis bonespringense – type locality for species
  • † Actinophrentis columnare – type locality for species
• † Acutichiton
  • † Acutichiton pannuceus – type locality for species
  • † Acutichiton pyrmidalus
• † Adamantina
  • † Adamantina foliacea
• † Adlatipora – type locality for genus
  • † Adlatipora fossulata – type locality for species
• † Adrianites – tentative report
• † Agathiceras
  • † Agathiceras applini – type locality for species
  • † Agathiceras ciscoense – type locality for species
  • † Agathiceras contractum – type locality for species
  • † Agathiceras frechi – type locality for species
  • † Agathiceras girtyi – type locality for species
  • † Agathiceras uralicum
• † Agelesia
  • † Agelesia triagonalis – type locality for species
• † Agmoblastus
  • † Agmoblastus caddense – type locality for species
• † Agnostocrinus
  • † Agnostocrinus ornatus – type locality for species
• † Akmilleria
  • † Akmilleria adkinsi – type locality for species
  • † Akmilleria electraensis
  • † Akmilleria huecoensis – type locality for species
• † Albaillella
  • † Albaillella foremanae – type locality for species
• † Alegeinosaurus

• 

  Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris

  † Alethopteris
• † Alilepis
• † Alisporites
  • † Alisporites plicatus – type locality for species
  • † Alisporites zapfei
• † Allagecrinus
  • † Allagecrinus bassleri
• † Allopiloceras
• † Allorhynchus
  • † Allorhynchus circulare
  • † Allorhynchus concentricum
  • † Allorhynchus formulosum
  • † Allorhynchus permianum – type locality for species
  • † Allorhynchus triangulatum – type locality for species
  • † Allorhynchus variabile – type locality for species
  • † Allorhynchus venustulum
• † Allorisma – tentative report
  • † Allorisma albequus
  • † Allorisma dubium – or unidentified related form
• † Allotropiochisma
  • † Allotropiochisma flabellum – type locality for species
  • † Allotropiochisma texanum – type locality for species
  • † Allotropiochisma uddenitense – type locality for species
• † Almites
  • † Almites sellardsi – type locality for species
• † Altadema – type locality for genus
  • † Altadema convexa – type locality for species
• † Altiplecus
  • † Altiplecus argutus
  • † Altiplecus cooperi
  • † Altiplecus deltosus
  • † Altiplecus extensus
  • † Altiplecus glebosus – type locality for species
  • † Altiplecus periosus
  • † Altiplecus trapezoidalis
• † Altudoceras
  • † Altudoceras altudense – type locality for species
  • † Altudoceras cooperi – type locality for species
  • † Altudoceras serratum – type locality for species
• † Alveus – type locality for genus
  • † Alveus depressus – type locality for species
• † Amandophyllum
• † Amaurotoma
  • † Amaurotoma subsinuata
• † Amblysiphonella
• † Ambozone
  • † Ambozone dictyonema
• † Ametoria – type locality for genus
  • † Ametoria residua – type locality for species
• † Ammovertella
• † Amphicrinus
• † Amphipella
  • † Amphipella arcaria
  • † Amphipella attenuata
• † Amphiscapha
  • † Amphiscapha catilloides
  • † Amphiscapha dextrata – type locality for species
  • † Amphiscapha gigantea – type locality for species
  • † Amphiscapha muricata
  • † Amphiscapha subquadrata
• † Amphissites
  • † Amphissites centronotus – or unidentified comparable form
  • † Amphissites knighti – type locality for species
• † Amplexizaphrentis
• † Amplexocarinia
• † Amplexus – report made of unidentified related form or using admittedly obsolete nomenclature

• 

  Fossilized shell of the Carboniferous-modern scallop Amusium

  Amusium – tentative report
• † Ananias
  • † Ananias appeli
  • † Ananias labrectus
  • † Ananias ootomaria – type locality for species
  • † Ananias permianus
  • † Ananias welleri
• † Anatsabites
  • † Anatsabites multiliratus – type locality for species
  • † Anatsabites williamsi
• † Anconochilus – type locality for genus
  • † Anconochilus barnesi – type locality for species
• † Anemonaria
  • † Anemonaria sublaevis – type locality for species
• † Aneuthelasma
  • † Aneuthelasma amygdalinum
• † Angelosaurus – type locality for genus
  • † Angelosaurus dolani – type locality for species
  • † Angelosaurus greeni – type locality for species
• † Angyomphalus
• † Anisodexis
• † Anisopyge – type locality for genus
  • † Anisopyge cooperi – type locality for species
  • † Anisopyge perannulata – type locality for species

• 

  Fossil of the Carboniferous horsetail relative Annularia

  † Annularia
  • † Annularia maxima
  • † Annularia spicata
  • † Annularia stellata – or unidentified comparable form
• † Annuliconcha
  • † Annuliconcha dentata
  • † Annuliconcha interlineata
• † Anodontacanthus
  • † Anodontacanthus americanus
• † Anomalesia
  • † Anomalesia perplexa
• † Anomaloria
  • † Anomaloria anomala
• † Anomphalus
  • † Anomphalus studiosus – type locality for species
  • † Anomphalus umbilicatus – or unidentified comparable form
  • † Anomphalus verruculiferus
• † Anopliopsis
  • † Anopliopsis subcarinata
• † Anoptychia
• † Anteridocus – type locality for genus
  • † Anteridocus bicostatus
  • † Anteridocus erugatus
  • † Anteridocus eximius
  • † Anteridocus gongylus – type locality for species
  • † Anteridocus paucicostatus – type locality for species
  • † Anteridocus seminudus
  • † Anteridocus subcarinatus
  • † Anteridocus swallovianus – type locality for species
  • † Anteridocus triangulatus
• † Anthracopupa
  • † Anthracopupa ohioensis
• † Anthracosycon
  • † Anthracosycon auriforme – type locality for species
  • † Anthracosycon ficus
  • † Anthracosycon regulare
• † Antiquatonia
  • † Antiquatonia inflativentra
  • † Antiquatonia portlockianus
• † Antronaria – type locality for genus
  • † Antronaria dissona – type locality for species
  • † Antronaria emarginata
  • † Antronaria indentata
  • † Antronaria mesicostalis – type locality for species
  • † Antronaria pluricosta
  • † Antronaria specialis
  • † Antronaria speciosa – type locality for species
  • † Antronaria spectabilis
  • † Antronaria titania
  • † Antronaria transversa
  • † Antronaria voluminosa – type locality for species
• † Apachella
  • † Apachella capertoni – type locality for species
  • † Apachella exaggerata
  • † Apachella franciscana
  • † Apachella glabra – type locality for species
  • † Apachella huecoensis – type locality for species
  • † Apachella nodosa
  • † Apachella powwowensis – type locality for species
  • † Apachella prodontia
  • † Apachella pseudostrigillata
  • † Apachella texana – type locality for species
  • † Apachella translirata
  • † Apachella turbiniformis
• † Apatokephalus
  • † Apatokephalus serratus
• † Aphaurosia
  • † Aphaurosia rotundata
  • † Aphaurosia scutata
• † Aphelaspis

• 

  Restoration of the Late Ordovician nautiloid cephalopod Aphetoceras being preyed upon by a Cameroceras

  † Aphetoceras
• † Aphlebia
• † Apographiocrinus
  • † Apographiocrinus arcuatus – or unidentified comparable form
  • † Apographiocrinus raderi – type locality for species
  • † Apographiocrinus typicalis
• † Apotocardium
  • † Apotocardium cordatum – type locality for species
  • † Apotocardium obliquum
• † Apsisaurus – type locality for genus
  • † Apsisaurus witteri – type locality for species
• † Apsotreta
  • † Apsotreta expansa
• † Apterrinella – tentative report
• † Araeonema
  • † Araeonema virgatum

• 

  Life restoration of the Permian reptile Araeoscelis

  † Araeoscelis – type locality for genus
  • † Araeoscelis casei
  • † Araeoscelis gracilis – type locality for species
• † Araucarites
• † Araxathyris – or unidentified comparable form
• † Arceodomus
  • † Arceodomus prolata – type locality for species
• † Archaeocidaris
  • † Archaeocidaris brownwoodensis – type locality for species
  • † Archaeocidaris cratis
• † Archaeocycas
  • † Archaeocycas whitei
• Archaeolithophyllum
• † Archaeolithoporella
• † Archaeoscyphia
  • † Archaeoscyphia annulata

• 

  Life restoration of the Permian amphibian Archeria

  † Archeria – type locality for genus
  • † Archeria crassidisca – type locality for species
• † Archimedes
• † Arcochiton
  • † Arcochiton raymondi
• † Arcuolimbus
  • † Arcuolimbus convexus
• † Arionthia – type locality for genus
  • † Arionthia alata
  • † Arionthia blothrhachis – type locality for species
  • † Arionthia germana – type locality for species
  • † Arionthia lamaria
  • † Arionthia polypleura
• † Aristoceras
  • † Aristoceras appressum
• † Armenoceras
  • † Armenoceras australe
• † Arrectocrinus
  • † Arrectocrinus major – type locality for species
  • † Arrectocrinus texanus – type locality for species
• † Artinskia
  • † Artinskia artiensis
  • † Artinskia lilianae – type locality for species
• † Artisia
• † Asaphellus
• † Aspidiopsis
• † Aspidosaurus – type locality for genus
  • † Aspidosaurus binasser – type locality for species
  • † Aspidosaurus chiton – type locality for species
  • † Aspidosaurus glascocki – type locality for species
  • † Aspidosaurus peltatus – type locality for species
• † Assimulia
  • † Assimulia abscessa – type locality for species
  • † Assimulia arta – type locality for species
  • † Assimulia compacta – type locality for species
  • † Assimulia flexibilis – type locality for species
  • † Assimulia fracta – type locality for species
  • † Assimulia frequentis – type locality for species
  • † Assimulia recrea – type locality for species
  • † Assimulia tergida – type locality for species
  • † Assimulia uddenitense – type locality for species
• † Astartella
  • † Astartella concentrica
  • † Astartella nasuta
  • † Astartella subquadrata
• † Astegosia
  • † Astegosia subquadrata
• † Atelestegastus
  • † Atelestegastus marginatus
• † Athlocrinus
• † Athyris
  • † Athyris bradyensis – type locality for species
• † Attenuatella
  • † Attenuatella texana
• † Aulopora – report made of unidentified related form or using admittedly obsolete nomenclature
• † Aulosteges
• † Aurikirkbya
  • † Aurikirkbya auriformis – type locality for species
  • † Aurikirkbya barbarae – type locality for species
  • † Aurikirkbya wordensis – type locality for species
• † Austinella
  • † Austinella kankakensis
• † Australosutura
  • † Australosutura llanoensis

• 

  Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten

  † Aviculopecten
  • † Aviculopecten ballingerana
  • † Aviculopecten girtyi – type locality for species
  • † Aviculopecten gryphus – type locality for species
  • † Aviculopecten herzeri
  • † Aviculopecten occidentalis
  • † Aviculopecten sumnerensis
  • † Aviculopecten texanus
• † Aviculopinna
• † Avonia
  • † Avonia honeycreekensis – type locality for species
  • † Avonia latidorsata
  • † Avonia meekana
  • † Avonia pustulifera – or unidentified comparable form
  • † Avonia signata
  • † Avonia subhorrida
  • † Avonia walcottiana

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Babylonites – type locality for genus
  • † Babylonites acutus – type locality for species
  • † Babylonites carinatus – type locality for species
  • † Babylonites conicus – type locality for species
  • † Babylonites turritus – type locality for species
• † Bactrites
  • † Bactrites elcapitanensis
• † Baiosoma
  • † Baiosoma pala – type locality for species
• Bairdia
  • † Bairdia guadalupiana – type locality for species
  • † Bairdia permiana – type locality for species
  • † Bairdia plebeia – or unidentified related form
  • † Bairdia pruniseminata – type locality for species
  • † Bairdia rhomboidalis – type locality for species
  • † Bairdia subfusiformis – type locality for species
  • † Bairdia wordensis – type locality for species
• † Bakevellia
• † Balkoceras – type locality for genus
  • † Balkoceras gracile – type locality for species
• † Bamberina
  • † Bamberina annectens
• † Bamyaniceras
  • † Bamyaniceras knighti
  • † Bamyaniceras simile
• † Barbclabornia
  • † Barbclabornia luedersensis – type locality for species
• † Barnesoceras – type locality for genus
  • † Barnesoceras clavatum – type locality for species
  • † Barnesoceras conosiphonatum – type locality for species
  • † Barnesoceras expansum – type locality for species
  • † Barnesoceras lamellosum – type locality for species
  • † Barnesoceras lentiexpansum – type locality for species
  • † Barnesoceras percurvatum – type locality for species
  • † Barnesoceras transversum – type locality for species
• † Bathyglyptus – type locality for genus
  • † Bathyglyptus theodori – type locality for species
• † Bathymyonia
  • † Bathymyonia nevadensis
• † Bathyurellus
• † Baylea
  • † Baylea delawarensis – type locality for species
  • † Baylea huecoensis – type locality for species
  • † Baylea knighti
  • † Baylea kuesi – type locality for species
  • † Baylea subconstricta
  • † Baylea supercrenata – or unidentified comparable form
  • † Baylea vjatkensis
• † Beecheria
  • † Beecheria chouteauensis
  • † Beecheria elliptica
  • † Beecheria expansa

• 

  Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon

  † Bellerophon – tentative report
• † Bellerophon
  • † Bellerophon complanatus – type locality for species
  • † Bellerophon deflectus
  • † Bellerophon graphicus
  • † Bellerophon hilli – type locality for species
  • † Bellerophon huecoensis – type locality for species
  • † Bellerophon kingorum – type locality for species
  • † Bellerophon majusculus
  • † Bellerophon parvicristus – type locality for species
• † Bellerophor
• † Belodella
  • † Belodella silurica
  • † Belodella striata – or unidentified comparable form
• † Beltella
• † Bembexia
• † Biarmeaspira
  • † Biarmeaspira multilineata
• † Bicuerda
  • † Bicuerda columnare – type locality for species
• † Bighornia
  • † Bighornia patella – or unidentified comparable form
• † Bitaunioceras
  • † Bitaunioceras texanum – type locality for species
• † Blountia
  • † Blountia assimilis
  • † Blountia ovata
• † Blountiella
• † Blountina
  • † Blountina westoni – or unidentified related form
• † Boesites
  • † Boesites kingi – type locality for species
  • † Boesites scotti – type locality for species
  • † Boesites texanus – type locality for species

• 

  Illustration of a fossilized skull of the Permian primitive reptile Bolosaurus

  † Bolosaurus – type locality for genus
  • † Bolosaurus major – type locality for species
  • † Bolosaurus striatus – type locality for species
• † Borestus
  • † Borestus magdalenensis – type locality for species
  • † Borestus texanus – type locality for species
• † Bothrionia – type locality for genus
  • † Bothrionia guadalupensis
  • † Bothrionia nasuta – type locality for species
  • † Bothrionia pulchra
  • † Bothrionia transversa – type locality for species
• † Bothrostegium – type locality for genus
  • † Bothrostegium compactum – type locality for species
  • † Bothrostegium derbyoideum
  • † Bothrostegium pusillum
• † Boultonia
  • † Boultonia guadalupensis – type locality for species
• † Bowmanites

• 

  Life restoration of the Carboniferous amphibian Brachydectes

  † Brachydectes
  • † Brachydectes elongatus
• † Brachydegma
  • † Brachydegma caelatum
• † Brachymetopus – tentative report
  • † Brachymetopus rhinorhachis – type locality for species
• † Brachyphyllum – tentative report
  • † Brachyphyllum densum – type locality for species
• † Brachythyris
  • † Brachythyris chouteauensis
• † Bradyphyllum
  • † Bradyphyllum coagmentum – type locality for species
  • † Bradyphyllum counterseptatum – type locality for species
  • † Bradyphyllum postwannense – type locality for species
• † Branneroceras
  • † Branneroceras branneri
• † Brochidium
  • † Brochidium morrisi – type locality for species

• 

  Life restoration of the Permian amphibian Broiliellus

  † Broiliellus – type locality for genus
  • † Broiliellus arroyoensis – type locality for species
  • † Broiliellus brevis – type locality for species
  • † Broiliellus olsoni – type locality for species
  • † Broiliellus peltatus – type locality for species
  • † Broiliellus texensis – type locality for species
• † Bryograptus
• † Bryorhynchus
  • † Bryorhynchus bisulcatum – type locality for species
  • † Bryorhynchus gratiosum – type locality for species
  • † Bryorhynchus nitidum
  • † Bryorhynchus plicatum
• † Bucanopsis
  • † Bucanopsis type locality for species – informal
• † Buekkella
  • † Buekkella digitata – type locality for species
• † Burenoceras
  • † Burenoceras cornucopia – type locality for species
  • † Burenoceras muricoides – type locality for species
  • † Burenoceras phragmoceroides – type locality for species
• Bythocypris
• † Byzantia – type locality for genus
  • † Byzantia obliqua – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• 

  Life restoration of the Permian amphibian Cacops

  † Cacops
  • † Cacops aspidephorus – type locality for species
• † Cactosteges – type locality for genus
  • † Cactosteges anomalus – type locality for species
• † Calamites
  • † Calamites undulatus
• † Calapoecia
  • † Calapoecia ungava – or unidentified comparable form
• † Calathium
• † Calcivertella
• † Calclamnella
• † Calclyra
  • † Calclyra eiseliana
  • † Calclyra spathulata – type locality for species
  • † Calclyra spinata – type locality for species
  • † Calclyra triangulata – type locality for species
• † Calliprotonia

• 

  Fossilized fronds of the Carboniferous seed fern Callipteridium

  † Callipteridium
  • † Callipteridium pteridium – or unidentified comparable form
  • † Callipteridium virginianum
• † Callipteris
  • † Callipteris conferta
  • † Callipteris flabellifera
• † Callispirina
  • † Callispirina rotunda
• † Callistadia – type locality for genus
  • † Callistadia bella – type locality for species
• † Callitomaria
  • † Callitomaria magna – type locality for species
  • † Callitomaria stanislavi
• † Calophyllum – tentative report
• † Calycocoelia
  • † Calycocoelia typicalis
• † Camarelasma
  • † Camarelasma neali
• † Camarophorella
  • † Camarophorella dorsata – type locality for species
• † Camarophorina – tentative report
• † Camarotoechia
• † Campophyllum – tentative report
  • † Campophyllum texanum – type locality for species
• † Camptochiton – type locality for genus
  • † Camptochiton squarrosus – type locality for species
• † Camptonectes – tentative report
• † Cancrinella
  • † Cancrinella boonensis – tentative report
  • † Cancrinella parva
  • † Cancrinella planumbona
  • † Cancrinella sparsispinosa
  • † Cancrinella subquadrata – type locality for species
• † Caneyella
  • † Caneyella wapanuckensis
• † Capillomesolobus
  • † Capillomesolobus permianus
• † Captorhinikos
  • † Captorhinikos chozaensis – type locality for species
  • † Captorhinikos valensis
• † Captorhinoides – type locality for genus
  • † Captorhinoides valensis – type locality for species

• 

  Life restoration of the Permian reptile Captorhinus

  † Captorhinus – type locality for genus
  • † Captorhinus aguti – type locality for species
  • † Captorhinus laticeps – type locality for species
• † Carbonicola
• † Carbonocoryphe
  • † Carbonocoryphe depressa
  • † Carbonocoryphe planucauda
• † Cardiella
  • † Cardiella electraensis
  • † Cardiella ganti
  • † Cardiella sulcata – type locality for species

• 

  Life restoration of the Permian amphibian Cardiocephalus

  † Cardiocephalus – type locality for genus
  • † Cardiocephalus sternbergi – type locality for species
• † Cardiomorpha
• † Carphites – type locality for genus
  • † Carphites diabloensis – type locality for species
  • † Carphites plectus
• † Carpolithes
• † Carrolla – type locality for genus
  • † Carrolla craddocki – type locality for species
• † Cartorhium – type locality for genus
  • † Cartorhium chelomatum – type locality for species
  • † Cartorhium coristum
  • † Cartorhium latum – type locality for species
  • † Cartorhium mexicanum – type locality for species
  • † Cartorhium orbiculatum
  • † Cartorhium retusum
  • † Cartorhium vidriense – type locality for species
  • † Cartorhium zoyei – type locality for species

• 

  Life restoration of the Permian synapsid (mammal precursor) Casea

  † Casea – type locality for genus
  • † Casea broilii – type locality for species
  • † Casea halselli – type locality for species
  • † Casea nicholsi – type locality for species
• † Caseoides – type locality for genus
  • † Caseoides sanangeloensis – type locality for species
• † Caseopsis
  • † Caseopsis agilis – type locality for species
• † Cassianoides – type locality for genus
  • † Cassianoides kingorum – type locality for species
• † Cassiavellia – type locality for genus
  • † Cassiavellia galtarae – type locality for species

• 

  Fossil of the Ordovician-Silurian tabulate coral Catenipora

  † Catenipora
  • † Catenipora workmanae – type locality for species
• † Catenispongia – type locality for genus
  • † Catenispongia agaricus – type locality for species
• † Cathaysiopteris
  • † Cathaysiopteris yochelsonii – type locality for species
• † Catoraphiceras
• † Cavellina
  • † Cavellina ellipticalis – type locality for species
  • † Cavellina nebrascensis

• 

  Fossil of the Cambrian trilobite Cedaria

  † Cedaria
  • † Cedaria gaspensis – or unidentified comparable form
• † Cenorhynchia – type locality for genus
  • † Cenorhynchia atmeta
  • † Cenorhynchia camerata
  • † Cenorhynchia fracida – type locality for species
  • † Cenorhynchia hebata
  • † Cenorhynchia mitigata
  • † Cenorhynchia nasuta
  • † Cenorhynchia parvula – type locality for species
  • † Cenorhynchia pentagonalis
  • † Cenorhynchia saginata – type locality for species
  • † Cenorhynchia transversa
  • † Cenorhynchia triangulata – type locality for species
  • † Cenorhynchia ventricosa
• † Centrotarphyceras
  • † Centrotarphyceras longicameratum
• † Ceratobairdia – type locality for genus
  • † Ceratobairdia dorsospinosa – type locality for species
• † Ceratopea
  • † Ceratopea capuliformis
  • † Ceratopea hami – or unidentified comparable form
  • † Ceratopea incurvata
  • † Ceratopea lemonei – type locality for species
  • † Ceratopea unguis – or unidentified comparable form
• † Ceraunocochlis
  • † Ceraunocochlis deformis – type locality for species
  • † Ceraunocochlis elongata – type locality for species
  • † Ceraunocochlis kidderi
  • † Ceraunocochlis trekensis – type locality for species
• † Chaeniorhynchus – type locality for genus
  • † Chaeniorhynchus inauris
  • † Chaeniorhynchus salutare
  • † Chaeniorhynchus transversum – type locality for species
• † Chaenomya – tentative report
• † Chaetetes
  • † Chaetetes mackrothii – tentative report

• 

  Chancelloria

  † Chancelloria – tentative report
• † Chauliochiton – type locality for genus
  • † Chauliochiton knighti – type locality for species
• † Chaunactis
• † Cheiropyge
  • † Cheiropyge koizumii – or unidentified comparable form
• † Chelononia
  • † Chelononia neali
  • † Chelononia straminea – type locality for species
• † Chiastocolumnia – type locality for genus
  • † Chiastocolumnia cylindrica – type locality for species
• † Choanodus – type locality for genus
  • † Choanodus anomalus
  • † Choanodus irregularis – type locality for species
  • † Choanodus perfectus – type locality for species
• † Choctawites
  • † Choctawites choctawensis
  • † Choctawites cumminsi
• † Chondronia – type locality for genus
  • † Chondronia bella – type locality for species
  • † Chondronia ningula – type locality for species
  • † Chondronia obesa
  • † Chondronia ovalis – type locality for species
  • † Chondronia parva
  • † Chondronia rectimarginata
• † Chonetella
  • † Chonetella flemingi
• † Chonetes
  • † Chonetes flemingi – tentative report
  • † Chonetes permianus
  • † Chonetes verneuilianus
• † Chonetinella
  • † Chonetinella biplicata
  • † Chonetinella ciboloensis
  • † Chonetinella crassiparva
  • † Chonetinella gerontica
  • † Chonetinella parva
  • † Chonetinella spinolirata – type locality for species
• † Chonetinetes
  • † Chonetinetes angustisulcatus
  • † Chonetinetes reversus – type locality for species
  • † Chonetinetes varians
• † Chonosteges
  • † Chonosteges costellatus – type locality for species
  • † Chonosteges limbatus
  • † Chonosteges magnicostatus – type locality for species
  • † Chonosteges matutinus
  • † Chonosteges multicostatus
  • † Chonosteges pulcher
  • † Chonosteges variabilis – type locality for species
• † Cibecuia
  • † Cibecuia gouldii – type locality for species
• † Cibolites – type locality for genus
  • † Cibolites uddeni – type locality for species
• † Cibolocrinus – type locality for genus
  • † Cibolocrinus erectus – type locality for species
  • † Cibolocrinus typus – type locality for species
• † Cinclidonema – type locality for genus
  • † Cinclidonema texanum – type locality for species
• † Cladopora – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Cladopora spinulata
  • † Cladopora tubulata
• † Clarkoceras
  • † Clarkoceras luthei – or unidentified related form
• † Clavallus
  • † Clavallus spicaudina
• † Cleidophorus – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Cleidophorus delawarensis

• 

  Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina

  † Cleiothyridina
  • † Cleiothyridina mulsa
  • † Cleiothyridina nana
  • † Cleiothyridina pilularis
  • † Cleiothyridina prouti – or unidentified comparable form
  • † Cleiothyridina rara
  • † Cleiothyridina rectimarginata – type locality for species
  • † Cleiothyridina tenuilineata
• † Clelandoceras – tentative report
  • † Clelandoceras rarum – type locality for species
• † Climacograptus
  • † Climacograptus nevadensis
  • † Climacograptus tubuliferus
• † Clinodomia
  • † Clinodomia obstipa
• † Clinolobus
  • † Clinolobus type locality for species – informal
• † Clinopistha – tentative report
  • † Clinopistha levis – or unidentified comparable form
• † Clistoceras
• † Clitendoceras
• † Clonograptus
• † Cluthoceras
• † Coccoseris
  • † Coccoseris astomata – type locality for species
• † Codonofusiella
  • † Codonofusiella paradoxica
• † Coelocladia
  • † Coelocladia spinosa
• † Coelocladiella – type locality for genus
  • † Coelocladiella lissa
  • † Coelocladiella philoconcha – type locality for species
• † Coelogasteroceras
  • † Coelogasteroceras mexicanum
• † Coenocystis – type locality for genus
  • † Coenocystis richardsoni – type locality for species
• † Coledium
  • † Coledium altisulcatum – type locality for species
  • † Coledium costatulum – type locality for species
  • † Coledium evexum
  • † Coledium undulatum
  • † Coledium vadosulcatum – type locality for species
• † Collatipora – type locality for genus
  • † Collatipora delicata
  • † Collatipora discreta – type locality for species
  • † Collatipora pyriformis
• † Collemataria – type locality for genus
  • † Collemataria americana
  • † Collemataria batilliformis
  • † Collemataria elongata – type locality for species
  • † Collemataria gregaria – type locality for species
  • † Collemataria irregularis – type locality for species
  • † Collemataria marshalli
  • † Collemataria platys – type locality for species
  • † Collemataria spatulata
• † Collumatus
  • † Collumatus solitarius
• † Colospongia
  • † Colospongia americana
  • † Colospongia benjamini
• † Colospongiella – type locality for genus
  • † Colospongiella permiana – type locality for species
• † Colpites
  • † Colpites minutus
  • † Colpites monilifera
  • † Colpites striata
• † Comia
• † Complexisporites – type locality for genus
  • † Complexisporites polymorphus – type locality for species

• 

  Fossilized shell of the Late Devonian-Permian brachiopod Composita

  † Composita
  • † Composita affinis
  • † Composita apheles – type locality for species
  • † Composita apsidata
  • † Composita bucculenta – type locality for species
  • † Composita costata
  • † Composita cracens
  • † Composita crassa – type locality for species
  • † Composita discina
  • † Composita emarginata
  • † Composita enormis – type locality for species
  • † Composita imbricata – type locality for species
  • † Composita mexicana
  • † Composita mira
  • † Composita nucella
  • † Composita ovata
  • † Composita parasulcata – type locality for species
  • † Composita persinuata
  • † Composita pilula
  • † Composita prospera
  • † Composita pyriformis
  • † Composita quantilla
  • † Composita stalagmium
  • † Composita strongyle – type locality for species
  • † Composita subcircularis
  • † Composita subtilita
• † Compressoproductus
  • † Compressoproductus acuminatus
  • † Compressoproductus concentricus
  • † Compressoproductus curtus – type locality for species
  • † Compressoproductus flabellatus
  • † Compressoproductus parvus
  • † Compressoproductus pinniformis
  • † Compressoproductus rarus – type locality for species
  • † Compressoproductus thomasi – type locality for species
• † Condrathyris
  • † Condrathyris perplexa
• † Conjunctio
• † Conocardium – tentative report
• † Conocerina
  • † Conocerina brevis – or unidentified comparable form
  • † Conocerina unguloides – type locality for species
• † Cooleyella
  • † Cooleyella amazonensis
  • † Cooleyella duffini – type locality for species
• † Cooperaria – type locality for genus
  • † Cooperaria getawayensis – type locality for species
• † Coopericus
  • † Coopericus angustus – type locality for species
  • † Coopericus semisulcatus
  • † Coopericus undatus
• † Cooperina
  • † Cooperina inexpectata
  • † Cooperina parva – type locality for species
  • † Cooperina subcuneata
  • † Cooperina triangulata
• † Cooperoceras – type locality for genus
  • † Cooperoceras texanum – type locality for species
• † Coosella
  • † Coosella beltensis
  • † Coosella granulosa
  • † Coosella widnerensis – or unidentified comparable form
• † Coosia
  • † Coosia pernamagna

• 

  Fossilized foliage of the Carboniferous-Permian conifer relative Cordaites

  † Cordaites
  • † Cordaites principalis
• † Coronakirkbya – type locality for genus
  • † Coronakirkbya fimbriata – type locality for species
• † Coryellina
  • † Coryellina indicata – type locality for species
• † Coryssochiton – type locality for genus
  • † Coryssochiton parallelus – type locality for species
• † Coscinophora – type locality for genus
  • † Coscinophora hortoni
  • † Coscinophora magnifica – type locality for species
  • † Coscinophora monilifera – type locality for species
  • † Coscinophora nodosa – type locality for species
• † Costatumulus
  • † Costatumulus distortus
  • † Costatumulus expansa – type locality for species
  • † Costatumulus fragosa
  • † Costatumulus villiersi
• † Costellarina – type locality for genus
  • † Costellarina costellata – type locality for species
• † Costiferina
  • † Costiferina indica
• † Costispinifera
  • † Costispinifera costata – type locality for species
  • † Costispinifera rugatula
  • † Costispinifera walcottiana
• † Cotteroceras

• 

  Life restoration of the Permian synapsid (mammal precursor) Cotylorhynchus

  † Cotylorhynchus
  • † Cotylorhynchus hancocki – type locality for species
• † Cranaena
  • † Cranaena dorsisulcata – type locality for species
  • † Cranaena hannibalensis – or unidentified comparable form
  • † Cranaena texana – type locality for species
• Crania
  • † Crania permiana – type locality for species
• † Craspedona
  • † Craspedona limbata – type locality for species
  • † Craspedona newelli
• † Crassumbo – type locality for genus
  • † Crassumbo inornatus – type locality for species
  • † Crassumbo turgidus – type locality for species
• † Cravenoceras – tentative report
• † Crenispirifer
  • † Crenispirifer angulatus – type locality for species
  • † Crenispirifer effrenus
  • † Crenispirifer jubatus
  • † Crenispirifer myllus
  • † Crenispirifer sagus
• † Crenulites – type locality for genus
  • † Crenulites duncanae – type locality for species
  • † Crenulites magnus – type locality for species

• 

  Illustration of a fossilized skull and ventral scutes of the Carboniferous-Permian reptile relative Cricotus . Edward Drinker Cope (1884).

  † Cricotus
  • † Cricotus crassidiscus – type locality for species
• † Crimites
  • † Crimites glomulus – tentative report
  • † Crimites type locality for species – informal
• † Cromyocrinus
  • † Cromyocrinus grandis – or unidentified comparable form
• † Crossotelos
  • † Crossotelos annulatus
• † Cruricella
  • † Cruricella minutalis – type locality for species
• † Crurithyris
  • † Crurithyris inflata
  • † Crurithyris longirostris
  • † Crurithyris major
  • † Crurithyris parva
  • † Crurithyris planoconvexa
  • † Crurithyris sulcata
• † Cryptacanthia
  • † Cryptacanthia glabra
• † Ctenacanthus
  • † Ctenacanthus amblyxiphias – type locality for species
• † Ctenalosia – type locality for genus
  • † Ctenalosia fixata – type locality for species
  • † Ctenalosia primitiva
  • † Ctenalosia rotunda
• † Ctenoptychius
• † Ctenospondylus – type locality for genus
  • † Ctenospondylus casei – type locality for species
• † Cullisonia
  • † Cullisonia producta
• † Culmitzschia
• † Culunama
  • † Culunama bellistiata
• † Cuniculocystis – type locality for genus
  • † Cuniculocystis floweri – type locality for species
• † Cupularostrum – tentative report
• † Cyathophylloides
  • † Cyathophylloides burksae – type locality for species
• † Cycadospadix
• † Cyclacantharia
  • † Cyclacantharia gigantea
  • † Cyclacantharia kingorum – type locality for species
  • † Cyclacantharia paucispinosa – type locality for species
  • † Cyclacantharia robusta
  • † Cyclacantharia transitoria – type locality for species
• † Cyclites
  • † Cyclites costatus – type locality for species
  • † Cyclites multilineata – type locality for species
• † Cyclobathmus
  • † Cyclobathmus haworthi
• † Cylicioscapha
  • † Cylicioscapha texana – type locality for species
  • † Cylicioscapha williamsi – type locality for species
• † Cylindritopsis
  • † Cylindritopsis hamiltonae – type locality for species
  • † Cylindritopsis insolitus
  • † Cylindritopsis spheroides – type locality for species
  • † Cylindritopsis vaningeni
• † Cymatospira
  • † Cymatospira montfortianus
• † Cyphotalosia – type locality for genus
  • † Cyphotalosia masonensis – type locality for species
• † Cypricardinia – tentative report
  • † Cypricardinia contracta – type locality for species
• † Cyptendoceras
  • † Cyptendoceras richardsoni – type locality for species
• † Cyrtina
  • † Cyrtina burlingtonensis
• † Cyrtorostra
  • † Cyrtorostra varicostata
• † Cystothalamia – type locality for genus
  • † Cystothalamia guadalupensis – type locality for species
  • † Cystothalamia megacysta
  • † Cystothalamia nodulifera

D

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Dactylites
  • † Dactylites magna – type locality for species
  • † Dactylites micropora – type locality for species
  • † Dactylites obconica – type locality for species
  • † Dactylites subdigitatus – type locality for species

• 

  Fossil of the Carboniferous-Late Cretaceous petrified conifer wood morphogenus Dadoxylon

  † Dadoxylon
• † Daharella
  • † Daharella crassa – type locality for species
  • † Daharella pattersonia – type locality for species
  • † Daharella ramosa
• † Daixites
  • † Daixites meglitskyi – or unidentified comparable form
• † Dakeoceras – tentative report
  • † Dakeoceras mutabile – type locality for species
• † Danaeites
• † Dapsilodus
  • † Dapsilodus obliquicostatus
  • † Dapsilodus praecipuus
  • † Dapsilodus sparsus
• † Daraelites
  • † Daraelites leonardensis – type locality for species

• 

  Restoration of the Permian amphibian Dasyceps

  † Dasyceps
  • † Dasyceps microphthalmus – type locality for species
• † Dasysaria
  • † Dasysaria inca
  • † Dasysaria undulata
  • † Dasysaria wolfcampensis – type locality for species
• † Dateroceras
• † Daubreeia
• † Decoriconus
  • † Decoriconus fragilis
• † Defordia
  • † Defordia defuncta
  • † Defordia densa – type locality for species
  • † Defordia lobata
• † Deiracephalus
  • † Deiracephalus aster
• † Delaria
  • † Delaria antiqua
  • † Delaria brevis – type locality for species
  • † Delaria chinatiensis – type locality for species
  • † Delaria granti – type locality for species
  • † Delaria westexensis – type locality for species
• † Delnortea
  • † Delnortea abbotiae
  • † Delnortea abbottiae
• † Delocrinus
  • † Delocrinus hemisphericus
  • † Delocrinus pictus
  • † Delocrinus subhemisphericus
• † Deltarina
  • † Deltarina magnicostata
• † Deltopecten
• † Demarezites
• † Dendropupa
  • † Dendropupa vetusta
• † Densonella
• Dentalium
• † Derbyia
  • † Derbyia bella
  • † Derbyia bennetti – or unidentified comparable form
  • † Derbyia buchi
  • † Derbyia carteri
  • † Derbyia cincinnata – type locality for species
  • † Derbyia ciscoensis – tentative report
  • † Derbyia complicata – type locality for species
  • † Derbyia crassa
  • † Derbyia crenulata
  • † Derbyia cymbula
  • † Derbyia elevata
  • † Derbyia filosa – type locality for species
  • † Derbyia informis – type locality for species
  • † Derbyia laqueata – type locality for species
  • † Derbyia multistriata – tentative report
  • † Derbyia nasuta
  • † Derbyia pannucia – type locality for species
  • † Derbyia profunda
  • † Derbyia scitula
  • † Derbyia strophomenoidea
  • † Derbyia sulcata
  • † Derbyia texta – type locality for species
  • † Derbyia wabaunseensis – tentative report
• † Derbyoides
  • † Derbyoides dunbari
  • † Derbyoides marathonensis
• † Dermospheroidalis – type locality for genus
  • † Dermospheroidalis irregularis – type locality for species
• † Desmoinsea
• † Diaboloceras
  • † Diaboloceras varicostatum

• 

  Life restoration of the Permian reptile relative Diadectes

  † Diadectes – type locality for genus
  • † Diadectes sideropelicus – type locality for species
  • † Diadectes tenuitectes – type locality for species
• † Diaphelasma
  • † Diaphelasma oklahomense
• † Dibunophyllum
  • † Dibunophyllum moorei
  • † Dibunophyllum uddeni – type locality for species
• † Dicellograptus
  • † Dicellograptus ornatus
• † Diceromyonia
  • † Diceromyonia crassa – type locality for species
• † Dichostasia
  • † Dichostasia complex – type locality for species
  • † Dichostasia simplex – type locality for species
• † Dicksonites
• † Dicranophyllum
• † Dictyoclostus
  • † Dictyoclostus semireticulatus – tentative report
• † Dictyotomaria
  • † Dictyotomaria euglyphea – type locality for species
  • † Dictyotomaria scitula
  • † Dictyotomaria type locality for species – informal
• † Didymodus
  • † Didymodus platypternus
• † Dielasma
  • † Dielasma adamanteum – type locality for species
  • † Dielasma anterolatum
  • † Dielasma bellulum
  • † Dielasma bovidens
  • † Dielasma compactum – type locality for species
  • † Dielasma cordatum – type locality for species
  • † Dielasma diabloense
  • † Dielasma ellipsoideum – type locality for species
  • † Dielasma emarginatum – type locality for species
  • † Dielasma expansum – type locality for species
  • † Dielasma gracile – type locality for species
  • † Dielasma hessense
  • † Dielasma labiatum
  • † Dielasma ligonorum
  • † Dielasma longisulcatum
  • † Dielasma microrhynchum
  • † Dielasma obesum – type locality for species
  • † Dielasma perplexum – type locality for species
  • † Dielasma pictile
  • † Dielasma planidorsatum – type locality for species
  • † Dielasma prolongatum
  • † Dielasma pygmaeum
  • † Dielasma rigbyi
  • † Dielasma shafterense – type locality for species
  • † Dielasma spatulatum
  • † Dielasma subcirculare
  • † Dielasma subcylindricum
  • † Dielasma sulcatum – type locality for species
  • † Dielasma uniplicatum
  • † Dielasma zebratum – type locality for species
• † Dielasmella
  • † Dielasmella larga – type locality for species
• † Diffingia – type locality for genus
  • † Diffingia coita – type locality for species
  • † Diffingia collecticia – type locality for species
  • † Diffingia divisa – type locality for species
  • † Diffingia largifica
  • † Diffingia tortuosa – type locality for species
  • † Diffingia valida – type locality for species
• † Dimacrodon – type locality for genus
  • † Dimacrodon hottoni – type locality for species
• † Dimetrodon – type locality for genus
  • † Dimetrodon angelensis – type locality for species
  • † Dimetrodon booneorum – type locality for species
  • † Dimetrodon dollovianus – type locality for species
  • † Dimetrodon gigashomogenes – type locality for species
  • † Dimetrodon grandis – type locality for species
  • † Dimetrodon kempae – type locality for species
  • † Dimetrodon limbatus – type locality for species
  • † Dimetrodon loomisi – type locality for species
  • † Dimetrodon macrospondylus – type locality for species
  • † Dimetrodon milleri – type locality for species
  • † Dimetrodon natalis – type locality for species
• † Dioonitocarpidium
• † Diplanus
  • † Diplanus apochordus
  • † Diplanus catatonus – type locality for species
  • † Diplanus lamellatus – type locality for species
  • † Diplanus rarus
  • † Diplanus redactus

• 

  Fossilized axial skeleton of the Carboniferous-Permian amphibian Diplocaulus

  † Diplocaulus – type locality for genus
  • † Diplocaulus brevirostris – type locality for species
  • † Diplocaulus copei – type locality for species
  • † Diplocaulus magnicornis – type locality for species
  • † Diplocaulus primus
  • † Diplocaulus recurvatus – type locality for species
• † Diploconula
  • † Diploconula biconvexa – type locality for species
• † Diplothmema
• † Diraphora
• † Discinites
• † Discotomaria
  • † Discotomaria basisulcata – type locality for species
  • † Discotomaria costata
  • † Discotomaria dubia – type locality for species
  • † Discotomaria nodosa – type locality for species
• † Discotropis – type locality for genus
  • † Discotropis girtyi – type locality for species
  • † Discotropis publicus
  • † Discotropis sulcifer

• 

  Fossilized partial skeleton of the Carboniferous amphibian Dissorophus

  † Dissorophus – type locality for genus
  • † Dissorophus multicinctus – type locality for species
• † Ditomopyge
  • † Ditomopyge decurtata
  • † Ditomopyge scitula
• † Divaricosta
  • † Divaricosta squarrosa – type locality for species
  • † Divaricosta vagabunda
• † Djemelia – tentative report
• † Docoderma – type locality for genus
  • † Docoderma papillosum – type locality for species
  • † Docoderma rigida
• † Domatoceras
  • † Domatoceras texanum – type locality for species
• † Donaldina
  • † Donaldina gracilis – type locality for species
  • † Donaldina knighti – type locality for species
  • † Donaldina robusta
  • † Donaldina stevensana
  • † Donaldina type locality for species – informal
• † Donaldospira
  • † Donaldospira nodosa – type locality for species
• † Donezella
• † Driveria – type locality for genus
  • † Driveria ponderosa – type locality for species
• † Dunbarites
  • † Dunbarites boardmani – type locality for species
  • † Dunbarites rectilaterale
• † Durhamina
  • † Durhamina cordillerensis – type locality for species
• † Dvorakia
  • † Dvorakia philipi – tentative report
• † Dyoros
  • † Dyoros angulatus – type locality for species
  • † Dyoros attenuatus
  • † Dyoros auriculatus
  • † Dyoros complanatus
  • † Dyoros concavus – type locality for species
  • † Dyoros consanguineus – type locality for species
  • † Dyoros convexus
  • † Dyoros endospinus – type locality for species
  • † Dyoros extensiformis – type locality for species
  • † Dyoros extensus – type locality for species
  • † Dyoros giganteus
  • † Dyoros hillanus
  • † Dyoros intrepidus
  • † Dyoros lateralis
  • † Dyoros magnus
  • † Dyoros parvus – type locality for species
  • † Dyoros planiextensus – type locality for species
  • † Dyoros planus
  • † Dyoros quadrangulatus – type locality for species
  • † Dyoros rectangulatus – type locality for species
  • † Dyoros robustus
  • † Dyoros solidus – type locality for species
  • † Dyoros strigosus – type locality for species
  • † Dyoros subliratus
  • † Dyoros subquadratus
  • † Dyoros tenuis – type locality for species
  • † Dyoros tetragonus
  • † Dyoros transversus – type locality for species
  • † Dyoros vagabundus – type locality for species
  • † Dyoros vulgaris
  • † Dyoros wordensis – type locality for species
• † Dysoristus
  • † Dysoristus lochmanae

E

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
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• Z

• † Echinaria
  • † Echinaria moorei
  • † Echinaria semipunctatus – tentative report
• † Echinauris
  • † Echinauris bella – type locality for species
  • † Echinauris boulei
  • † Echinauris circularis
  • † Echinauris crassa
  • † Echinauris interrupta
  • † Echinauris irregularis – type locality for species
  • † Echinauris lappacea – type locality for species
  • † Echinauris lateralis
  • † Echinauris liumbona – type locality for species
  • † Echinauris parva – type locality for species
  • † Echinauris productelloides
  • † Echinauris subquadrata – type locality for species
  • † Echinauris venustula
• † Echinosteges
  • † Echinosteges guadalupensis – type locality for species
  • † Echinosteges tuberculatus – type locality for species
• † Economolopsis
  • † Economolopsis anodontoides
• † Ectenoceras
• † Ectenolites
  • † Ectenolites primus – type locality for species
• † Ectochoristites
  • † Ectochoristites inflatus – type locality for species
• † Ectoposia – type locality for genus
  • † Ectoposia grandis
  • † Ectoposia wildei – type locality for species
• † Ectosteorachis
  • † Ectosteorachis nitidus
• † Ectosterohachis
  • † Ectosterohachis nitidus

• 

  Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Edaphosaurus

  † Edaphosaurus – type locality for genus
  • † Edaphosaurus boanerges
  • † Edaphosaurus cruciger – or unidentified related form
  • † Edaphosaurus microdus
  • † Edaphosaurus pogonias – type locality for species
• † Edestus
  • † Edestus minor
• † Edmondia
  • † Edmondia bellula – type locality for species
  • † Edmondia glabra
  • † Edmondia rotunda – type locality for species
  • † Edmondia suborbiculata – tentative report

• 

  Life restoration of the Permian amphibian Edops

  † Edops
  • † Edops craigi
• † Edriosteges – type locality for genus
  • † Edriosteges beedei – type locality for species
  • † Edriosteges compactus
  • † Edriosteges medlicottianus
  • † Edriosteges multispinosus – type locality for species
  • † Edriosteges tenuispinosus – type locality for species
• † Eirlysia
  • † Eirlysia exquisita – type locality for species
  • † Eirlysia nodosa – type locality for species
  • † Eirlysia reticulata
• † Elassonia
  • † Elassonia micraria
  • † Elassonia petila
  • † Elassonia scitula
• † Elibatocrinus
• † Eliva
  • † Eliva inflata
  • † Eliva shumardi
• † Elivina
  • † Elivina compacta – type locality for species
  • † Elivina detecta
  • † Elivina sulcifer
• † Ellesmeroceras
• † Elliottella
  • † Elliottella minima
  • † Elliottella multicostata
  • † Elliottella transversalis
  • † Elliottella varicostata – type locality for species
• † Elliptechinus – type locality for genus
  • † Elliptechinus kiwiaster – type locality for species
• † Elversella – type locality for genus
  • † Elversella rugosa
• † Elyx – tentative report
• † Emilites
  • † Emilites brownwoodi – type locality for species
  • † Emilites incertum
  • † Emilites incertus – type locality for species
• † Empedias
  • † Empedias molaris
• † Enallosia
  • † Enallosia rotundovata
• † Endelocrinus
  • † Endelocrinus grafordensis
  • † Endelocrinus tumidus

• 

  Fossilized shells and restored appearances of the Middle-Late Ordovician nautiloid cephalopod Endoceras

  † Endoceras
  • † Endoceras baylorense
• † Endolobus
  • † Endolobus renfroae – type locality for species
• † Endoplegma
  • † Endoplegma calathus
• † Endothyra
• † Enteletes
  • † Enteletes angulatus – type locality for species
  • † Enteletes costellatus
  • † Enteletes densus
  • † Enteletes dumblei – type locality for species
  • † Enteletes exiguus
  • † Enteletes globosus – type locality for species
  • † Enteletes hemiplicata
  • † Enteletes leonardensis
  • † Enteletes liumbonus – type locality for species
  • † Enteletes plummeri – type locality for species
  • † Enteletes rotundobesus – type locality for species
  • † Enteletes stehlii – type locality for species
  • † Enteletes subcircularis
  • † Enteletes subnudus
  • † Enteletes wolfcampensis
  • † Enteletes wordensis
• † Eoasianites
  • † Eoasianites smithwickensis
  • † Eoasianites subhanieli
• † Eoastarte
  • † Eoastarte subcircularis
• † Eocamptonectes
  • † Eocamptonectes asperatus
  • † Eocamptonectes papillatus
  • † Eocamptonectes sculptilis
• Eocaudina
  • † Eocaudina marginata
  • † Eocaudina mccormacki
  • † Eocaudina septaforaminalis
  • † Eocaudina subhexagona
• † Eochonetes
  • † Eochonetes magna – type locality for species
  • † Eochonetes mucronata – type locality for species
• † Eolyttonia
  • † Eolyttonia catilla
  • † Eolyttonia chaotica – type locality for species
  • † Eolyttonia circularis – type locality for species
  • † Eolyttonia cornucopia
  • † Eolyttonia diabloensis
  • † Eolyttonia fredericksi – type locality for species
  • † Eolyttonia gigantea – type locality for species
  • † Eolyttonia parviconica
  • † Eolyttonia phialiforma
  • † Eolyttonia pocillata – type locality for species
  • † Eolyttonia progressa – type locality for species
• † Eomartiniopsis
  • † Eomartiniopsis girtyi
• † Eopteria
  • † Eopteria richardsoni
• † Eoschistoceras – type locality for genus
  • † Eoschistoceras strawnense – type locality for species
• † Eosyodon – type locality for genus
  • † Eosyodon hudsoni – type locality for species
• † Eothalassoceras – tentative report
• † Eothinites
  • † Eothinites hessensis – type locality for species
  • † Eothinites planulatus

• 

  Fossilized skull in multiple views of the Permian reptile Eothyris

  † Eothyris – type locality for genus
  • † Eothyris parkeyi – type locality for species
• † Eotiaris
  • † Eotiaris connorsi – type locality for species
  • † Eotiaris guadalupensis – type locality for species
• † Eowellerites
  • † Eowellerites moorei – type locality for species
• † Ephippioceras
  • † Ephippioceras inexpectans – type locality for species
  • † Ephippioceras moinellae
• † Epiactinotrypa
  • † Epiactinotrypa sera – type locality for species
• † Epimastopora
• † Epiphyton
• † Epithalassoceras
  • † Epithalassoceras type locality for species – informal
• † Eridmatus
  • † Eridmatus marathonensis – type locality for species
  • † Eridmatus texanus
• † Erisocrinus
  • † Erisocrinus propinquus – type locality for species
  • † Erisocrinus trinodus – type locality for species
• † Ernestiodendron

• 

  Life restoration of the Carboniferous-Permian amphibian Eryops

  † Eryops – type locality for genus
  • † Eryops anatinus – type locality for species
  • † Eryops kayi – type locality for species
  • † Eryops megacephalus – type locality for species
• † Estheria
• † Etheridgella
  • † Etheridgella porosa – type locality for species
• † Etoblattina
  • † Etoblattina robusta – type locality for species
  • † Etoblattina texana – type locality for species
• † Euchondria
  • † Euchondria cooperi – type locality for species
• † Euconia – type locality for genus
  • † Euconia conicus
  • † Euconia etna
  • † Euconia umbilicata
• † Euconospira
  • † Euconospira obsoleta – type locality for species
  • † Euconospira pulchra – type locality for species
  • † Euconospira spiroperforata – type locality for species
  • † Euconospira varizona
• † Eugonophyllum
  • † Eugonophyllum huecoensis
  • † Eugonophyllum johnsonii
• † Eumedlicottia
  • † Eumedlicottia burckhardti – type locality for species
  • † Eumedlicottia whitneyi – type locality for species
• † Eumorphoceras
  • † Eumorphoceras bisulcatum

• 

  Fossilized shell of the Silurian-Permian sea snail Euomphalus

  † Euomphalus
  • † Euomphalus cornudanus – type locality for species
  • † Euomphalus glabribasis
  • † Euomphalus kaibabensis
  • † Euomphalus levicarinatus – type locality for species
  • † Euomphalus pernodosus
• † Euonychocrinus
  • † Euonychocrinus subservire – type locality for species
• † Euphemites
  • † Euphemites aequisulcatus
  • † Euphemites batteni – type locality for species
  • † Euphemites blaneyanus
  • † Euphemites circumcostatus
  • † Euphemites crenulatus – type locality for species
  • † Euphemites exquisitus – type locality for species
  • † Euphemites imperator – type locality for species
  • † Euphemites kingi – type locality for species
  • † Euphemites luxuriosus – type locality for species
  • † Euphemites nodocarinatus
  • † Euphemites sparciliratus – type locality for species
  • † Euphemites vittatus
• † Euphemitopsis
  • † Euphemitopsis multinodosa – type locality for species
  • † Euphemitopsis paucinodosus
• † Eupleuroceras
  • † Eupleuroceras bellulum
• † Eurylepidoides – type locality for genus
  • † Eurylepidoides socialis – type locality for species
• † Euryodus – type locality for genus
  • † Euryodus primus – type locality for species
• † Euryphyllum – tentative report
  • † Euryphyllum profundum – type locality for species
  • † Euryphyllum robustum – type locality for species
• † Evolsonia
• † Exaulipora
  • † Exaulipora permica
• † Exovasa – type locality for genus
  • † Exovasa cystauletoides – type locality for species

F

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
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• W
• X
• Y
• Z

• † Falsiamplexus – type locality for genus
  • † Falsiamplexus delicata
  • † Falsiamplexus elongatus – type locality for species
  • † Falsiamplexus flexibilis – type locality for species
  • † Falsiamplexus reductus – type locality for species
• † Fascicosta
  • † Fascicosta bella
  • † Fascicosta elongata
  • † Fascicosta longaeva
• † Fayettevillea
• † Fenestella
  • † Fenestella amplia
  • † Fenestella archimediformis
  • † Fenestella capitanensis
  • † Fenestella firmior
  • † Fenestella girtyi
  • † Fenestella guadalupensis – type locality for species
  • † Fenestella hilli
  • † Fenestella popeana
  • † Fenestella schucherti – or unidentified comparable form
  • † Fenestella spinulifera
  • † Fenestella texana – type locality for species
• † Fenestrellina
• † Ferganispira
  • † Ferganispira acteonina – type locality for species
• † Fimbrinia
  • † Fimbrinia cristatotuberculata
  • † Fimbrinia ovata
  • † Fimbrinia plummeri
• † Finkelnburgia
  • † Finkelnburgia crassicostellata – or unidentified comparable form
  • † Finkelnburgia cullisonia – or unidentified comparable form
• † Fissispongia
  • † Fissispongia jacksboroensis
• † Fistulipora
  • † Fistulipora guadalupae – type locality for species
  • † Fistulipora guadalupensis
• † Flexuospiculata – type locality for genus
  • † Flexuospiculata hexactina – type locality for species
• † Foordiceras
  • † Foordiceras mammiferum – type locality for species
  • † Foordiceras ornatissimum – type locality for species
• † Fransonia
  • † Fransonia wyomingensis
• † Fusella
  • † Fusella llanoensis – type locality for species
• † Fusiella

• 

  Assemblage of fossils of Silurian-Permian fusulinid foraminiferans

  † Fusulina – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Fusulina elongata – type locality for species

G

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
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• U
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• W
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• † Gasconadia
  • † Gasconadia putilla
• † Gastrioceras
  • † Gastrioceras montgomeryense
  • † Gastrioceras occidentale
• † Geinitzina
• † Genevievella
  • † Genevievella spinox
• † Geniculifera
  • † Geniculifera brevicula – type locality for species
• † Geragnostus

• 

  Life restoration of the Permian frog precursor Gerobatrachus

  † Gerobatrachus – type locality for genus
  • † Gerobatrachus hottoni – type locality for species
• † Gervillia – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Gervillia longa
• † Geyerella
  • † Geyerella americana – type locality for species
  • † Geyerella hessi – type locality for species
  • † Geyerella inexpectata – type locality for species
  • † Geyerella kingorum
• † Gigantonoclea
• † Gigantopteris
  • † Gigantopteris americana
• † Girtycoelia
  • † Girtycoelia typica
• † Girtyella
  • † Girtyella cedarensis – or unidentified related form
• † Girtyoceras
  • † Girtyoceras hamiltonense
  • † Girtyoceras meslerianum
• † Girtyocoelia
  • † Girtyocoelia beedei
• † Girtypecten
  • † Girtypecten sublaqueatus
• † Girtypora
  • † Girtypora constricta – type locality for species
  • † Girtypora hillana – type locality for species
  • † Girtypora ocellata
  • † Girtypora terminalis
  • † Girtypora vittata
• † Girtyporina
  • † Girtyporina incrustans – type locality for species
• † Girtyspira
  • † Girtyspira minuta
  • † Girtyspira yodai – type locality for species
• † Girvanella
• † Glabrocingulum
  • † Glabrocingulum alveozonum
  • † Glabrocingulum coronatum
  • † Glabrocingulum diablo
  • † Glabrocingulum grayvillense
  • † Glabrocingulum lupus
  • † Glabrocingulum texanum – type locality for species
• † Glaphyrites
  • † Glaphyrites angulatus
  • † Glaphyrites anguloumbilicatus
  • † Glaphyrites deciensis – type locality for species
  • † Glaphyrites hyattianus
  • † Glaphyrites kansasensis
  • † Glaphyrites millsi
  • † Glaphyrites modestus – type locality for species
  • † Glaphyrites raymondi
  • † Glaphyrites ruzencevi
  • † Glaphyrites welleri
• † Glassoceras
  • † Glassoceras normani – type locality for species
• † Glaucosaurus – type locality for genus
  • † Glaucosaurus megalops – type locality for species

• 

  Life restoration of the Carboniferous shark Glikmanius

  † Glikmanius
  • † Glikmanius occidentalis
• † Globivalvulina
• † Glossothyropsis
  • † Glossothyropsis carinata
  • † Glossothyropsis cryptacanthoides
  • † Glossothyropsis immatura
  • † Glossothyropsis juvenis
  • † Glossothyropsis polita
  • † Glossothyropsis rectangulata – type locality for species
  • † Glossothyropsis robusta
  • † Glossothyropsis sinuata
  • † Glossothyropsis superba – type locality for species
• † Gloverilima
  • † Gloverilima pratti
• † Glyptagnostus
• † Glyptorthis
  • † Glyptorthis maquoketensis
• † Glyptospira
  • † Glyptospira cingulata – type locality for species
  • † Glyptospira huecoensis – type locality for species
  • † Glyptospira quadriserrata – type locality for species
  • † Glyptospira tricostata
  • † Glyptospira turrita
• † Glyptosteges
  • † Glyptosteges angustus – type locality for species
  • † Glyptosteges insculptus
  • † Glyptosteges intricatus – type locality for species
  • † Glyptosteges sulcatus
• † Glyptotomaria – type locality for genus
  • † Glyptotomaria apiarium – type locality for species
  • † Glyptotomaria marginata – type locality for species
  • † Glyptotomaria pistra – type locality for species
• † Gnamptorhynchos
  • † Gnamptorhynchos prayi

• 

  Life restoration of the Permian lungfish Gnathorhiza

  † Gnathorhiza
  • † Gnathorhiza dikeloda – type locality for species
  • † Gnathorhiza serrata
• † Gomphostrobus
  • † Gomphostrobus bifidus
• † Goniarina
  • † Goniarina appeli – type locality for species
  • † Goniarina diabloensis
  • † Goniarina futilis
  • † Goniarina magniextensa
  • † Goniarina permiana
  • † Goniarina pyelodes
  • † Goniarina striata
• † Goniasma
  • † Goniasma lasallense

• 

  Fossilized shell of the Late Devonian-Late Triassic ammonoid cephalopod Goniatites

  † Goniatites
  • † Goniatites eganensis
  • † Goniatites multiliratus
• † Goniocephalus – type locality for genus
  • † Goniocephalus willistoni – type locality for species
• † Goniocladia
  • † Goniocladia americana
• † Gonioloboceras
  • † Gonioloboceras bridgeportense – type locality for species
  • † Gonioloboceras goniolobus
  • † Gonioloboceras gracellenae
  • † Gonioloboceras parrishi
  • † Gonioloboceras welleri
• † Gorgodon – type locality for genus
  • † Gorgodon minutus – type locality for species
• † Gosseletina
  • † Gosseletina permiana – type locality for species
• † Grammatodon
  • † Grammatodon politus
• † Grandaurispina
  • † Grandaurispina bella – type locality for species
  • † Grandaurispina belliformis
  • † Grandaurispina crassa
  • † Grandaurispina elongata
  • † Grandaurispina gibbosa – type locality for species
  • † Grandaurispina kingorum – type locality for species
  • † Grandaurispina meekana
  • † Grandaurispina rara
  • † Grandaurispina rudis
  • † Grandaurispina signata – type locality for species
  • † Grandaurispina undulata
  • † Grandaurispina vaga – type locality for species
• † Graphiocrinus
  • † Graphiocrinus bridgeportensis – type locality for species

• 

  Multiple views of a fossil of the Ordovician horn coral Grewingkia

  † Grewingkia
  • † Grewingkia crassa
  • † Grewingkia franklinensis
  • † Grewingkia robusta
• † Griffithidella
  • † Griffithidella alternata
  • † Griffithidella doris
• † Gryphochiton
  • † Gryphochiton girtyi – type locality for species
• † Guadalupelosia
  • † Guadalupelosia inexpectans
• † Guadalupia
  • † Guadalupia auricula – type locality for species
  • † Guadalupia cupulosa – type locality for species
  • † Guadalupia favosa – type locality for species
  • † Guadalupia lepta – type locality for species
  • † Guadalupia microcamera – type locality for species
  • † Guadalupia minuta – type locality for species
  • † Guadalupia ramescens – type locality for species
  • † Guadalupia vasa – type locality for species
  • † Guadalupia zitteliana
• † Guizhoupecten
  • † Guizhoupecten cheni
• † Gypospirifer – type locality for genus
  • † Gypospirifer anancites – type locality for species

  • 

    Fossilized shell of the Carboniferous-Permian brachiopod Gypospirifer condor

    † Gypospirifer condor
  • † Gypospirifer infraplicus
  • † Gypospirifer nelsoni

H

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Hadropipetta
  • † Hadropipetta ancora
• † Hamburgia
  • † Hamburgia chappelensis – type locality for species
  • † Hamburgia texana
• † Haplistion
  • † Haplistion aeluroglossa – type locality for species
  • † Haplistion megalochetus – type locality for species
  • † Haplistion skinneri – or unidentified comparable form
• † Hayasakapecten
  • † Hayasakapecten americanus
• † Healdia
  • † Healdia unispinosa – type locality for species
  • † Healdia vidriensis – type locality for species
• † Hebertella
  • † Hebertella occidentalis
• † Hebetorthoceras
  • † Hebetorthoceras brokenarrowense
• † Helicoconchus – type locality for genus
  • † Helicoconchus elongatus – type locality for species

• 

  Fossilized tooth whorl of the Carboniferous Chimaera relative Helicoprion

  † Helicoprion
  • † Helicoprion davisii
• † Heliospongia
  • † Heliospongia excavata
  • † Heliospongia ramosa
  • † Heliospongia vokesi
• † Helminthochiton
  • † Helminthochiton simplex
• † Hemileurus
  • † Hemileurus runcinatus
• † Hemiliroceras
  • † Hemiliroceras reticulatum
• † Hemizyga

• 

  Hercosestria

  † Hercosestria
  • † Hercosestria cribrosa – type locality for species
  • † Hercosestria hystricula
  • † Hercosestria laevis
• † Hercosia
  • † Hercosia delicata
  • † Hercosia uddeni – type locality for species
• † Heritschioides
• † Hermosanema
  • † Hermosanema carinatum – type locality for species
• † Hesperiella
  • † Hesperiella permianus – type locality for species
  • † Hesperiella wordensis
• † Heteralosia
  • † Heteralosia hystricula – type locality for species
  • † Heteralosia magnispina
  • † Heteralosia paucispinosa
  • † Heteralosia tenuispina
  • † Heteralosia vidriensis
• † Heteraria
  • † Heteraria blakemorei
• † Heterelasma
  • † Heterelasma angulatum
  • † Heterelasma concavum – type locality for species
  • † Heterelasma contortum
  • † Heterelasma geniculatum
  • † Heterelasma gibbosum – type locality for species
  • † Heterelasma glansfagea – type locality for species
  • † Heterelasma lenticularia
  • † Heterelasma magnum
  • † Heterelasma pentagonum – type locality for species
  • † Heterelasma quadratum
  • † Heterelasma shumardianum
  • † Heterelasma solidum – type locality for species
  • † Heterelasma sulciplicatum
  • † Heterelasma venustulum
• † Heteropecten
  • † Heteropecten vanvleeti
• † Heteroschizodus – type locality for genus
  • † Heteroschizodus macomoides – type locality for species
• † Hexirregularia – type locality for genus
  • † Hexirregularia nana – type locality for species
• † Hiscobeccus – tentative report
  • † Hiscobeccus capax
• † Hoffmannia – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Hoffmannia fisheri – type locality for species
• † Holcacephalus
  • † Holcacephalus tenerus
• † Holosia – type locality for genus
  • † Holosia ovalis – type locality for species
  • † Holosia ovoidea
  • † Holosia regularis
• † Holotricharina – type locality for genus
  • † Holotricharina hirsuta – type locality for species
  • † Holotricharina sparsa – type locality for species
• † Homagnostus
• † Hormotoma
  • † Hormotoma moderata – type locality for species
• † Hustedia
  • † Hustedia ampullacea – type locality for species
  • † Hustedia bipartita
  • † Hustedia catella – type locality for species
  • † Hustedia cepacea
  • † Hustedia citeria
  • † Hustedia compressa
  • † Hustedia connorsi – type locality for species
  • † Hustedia consuta – type locality for species
  • † Hustedia crepax
  • † Hustedia culcitula
  • † Hustedia cuneata – type locality for species
  • † Hustedia decollatensis
  • † Hustedia demissa
  • † Hustedia glomerosa
  • † Hustedia hapala
  • † Hustedia hessensis – type locality for species
  • † Hustedia huecoensis – type locality for species
  • † Hustedia inconspicua
  • † Hustedia lusca – type locality for species
  • † Hustedia meekana
  • † Hustedia mormoni
  • † Hustedia mormonii
  • † Hustedia narinosa
  • † Hustedia opsia
  • † Hustedia papillata – type locality for species
  • † Hustedia pugilla – type locality for species
  • † Hustedia pusilla
  • † Hustedia rupinata
  • † Hustedia samiata
  • † Hustedia sculptilis – type locality for species
  • † Hustedia spicata – type locality for species
  • † Hustedia stataria
  • † Hustedia texana
  • † Hustedia tomea
  • † Hustedia trisecta
  • † Hustedia trita

• 

  Restoration of two of the Permian-Late Cretaceous cartilaginous fish Hybodus

  † Hybodus
  • † Hybodus copei – type locality for species
• † Hypergonia
  • † Hypergonia percostata
• † Hypopsia
  • † Hypopsia versuta
• † Hypselentoma
  • † Hypselentoma ornata – type locality for species
• † Hypseloconus
• † Hypsiptycha
  • † Hypsiptycha argenturbicum
  • † Hypsiptycha neenah
• † Hystriculina
  • † Hystriculina convexa
  • † Hystriculina dugoutensis – type locality for species
  • † Hystriculina minima
  • † Hystriculina pumila
  • † Hystriculina sulcata – type locality for species
  • † Hystriculina ventroplana
  • † Hystriculina wabashensis
• † Hystricurus

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Contents

• A
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• D
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• F
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• I
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• † Ianthinopsis
  • † Ianthinopsis medialis
• † Icriodus
  • † Icriodus eolatericrescens
  • † Icriodus gravesi
• † Ideliopsis – type locality for genus
  • † Ideliopsis ovalis – type locality for species
• † Illusioluidia – type locality for genus
  • † Illusioluidia teneryi – type locality for species
• † Incisimura – type locality for genus
  • † Incisimura bella – type locality for species
• † Incrustospongia – type locality for genus
  • † Incrustospongia meandrica – type locality for species
• † Institella
  • † Institella leonardensis – type locality for species
• † Insulipora
  • † Insulipora elegans
• † Iotina
  • † Iotina minuta
• † Isacrodus – type locality for genus
  • † Isacrodus marthae – type locality for species
• † Ischnoptygma
  • † Ischnoptygma archibaldi – type locality for species
  • † Ischnoptygma valentinei – type locality for species

• 

  Life restoration of the Permian amphibian Isodectes

  † Isodectes
  • † Isodectes obtusus – type locality for species
• † Isogramma
  • † Isogramma concavum
  • † Isogramma diabloense
  • † Isogramma lobatum
  • † Isogramma millepunctata
  • † Isogramma vidriense
• † Isotrypa
• † Ivanovia

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Contents

• A
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• D
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• I
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• 

  Restoration of the Carboniferous-Permian ray-like cartilaginous fish Janassa (top and left)

  † Janassa
• † Jeffersonia
  • † Jeffersonia granosa
• † Jereina – type locality for genus
  • † Jereina cylindrica – type locality for species
  • † Jereina ramosa – type locality for species
• † Jinogondolella
  • † Jinogondolella aserrata
  • † Jinogondolella gladirobusta
  • † Jinogondolella nankingensis
  • † Jinogondolella postserrata
• † Juresania
• † Juresanites
  • † Juresanites colemanensis – type locality for species

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Contents

• A
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• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
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• Y
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• † Kahneria – type locality for genus
  • † Kahneria seltina – type locality for species
• † Kaibabella
  • † Kaibabella basilica
• † Kalodomia
  • † Kalodomia rugosa
• † Kargalites
  • † Kargalites subquadratum
  • † Kargalites subquadratus – type locality for species
  • † Kargalites type locality for species – informal
• † Kaskia
  • † Kaskia rarus
• † Kellettina
  • † Kellettina vidriensis – type locality for species
• † Kindlella – type locality for genus
  • † Kindlella centrinoda – type locality for species
  • † Kindlella fissiloba – type locality for species
• † Kingopora – tentative report
• † Kingstonia
  • † Kingstonia pontotocensis
• † Kinsabia
  • † Kinsabia variegata
• † Kirkbya
• † Knightina – tentative report
  • † Knightina cuestaforma – type locality for species
  • † Knightina macknighti – type locality for species
• † Knightites
  • † Knightites maximus – type locality for species
  • † Knightites medius – type locality for species
• † Knightoceras
  • † Knightoceras kempae – type locality for species
• † Knoxosaurus – type locality for genus
  • † Knoxosaurus niteckii – type locality for species
• † Kochiproductus
  • † Kochiproductus elongatus
  • † Kochiproductus occidentalis – type locality for species
  • † Kochiproductus peruvianus
  • † Kochiproductus primitivus – type locality for species
  • † Kochiproductus quadratus
  • † Kochiproductus victorioensis – type locality for species
• † Kockelella
  • † Kockelella ortus
• † Komia
• † Komiella – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Komiella ostiolata
• † Kormagnostus
  • † Kormagnostus seclusus
• † Kozlowskia
  • † Kozlowskia alata
  • † Kozlowskia anterosulcata
  • † Kozlowskia capaci
  • † Kozlowskia kingi
  • † Kozlowskia nasuta
  • † Kozlowskia splendens
  • † Kozlowskia subsphaeroidalis
• † Kutorginella
  • † Kutorginella dartoni – type locality for species
  • † Kutorginella lasallensis
  • † Kutorginella robusta
  • † Kutorginella sullivanensis
  • † Kutorginella uddeni
  • † Kutorginella umbonata

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
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• † Labidosaurikos
  • † Labidosaurikos meachami – type locality for species

• 

  Life restoration of the Permian reptile Labidosaurus

  † Labidosaurus
  • † Labidosaurus barkeri
  • † Labidosaurus hamatus – type locality for species
• † Labridens
  • † Labridens shupei
• † Lacunospira
  • † Lacunospira alta – type locality for species
  • † Lacunospira altsia
  • † Lacunospira lirata – type locality for species
• † Lamarodus – type locality for genus ^[1]
  • † Lamarodus triangulus – type locality for species ^[1]
• † Lambeoceras
  • † Lambeoceras rotundum
• † Lamellosia
  • † Lamellosia lamellosa
• † Lamellospira
  • † Lamellospira cincta – type locality for species
  • † Lamellospira conica
  • † Lamellospira spinosa – type locality for species
• † Langepis – type locality for genus
  • † Langepis campbelli
• † Laudonocrinus
  • † Laudonocrinus subsinuatus
• † Lawnia – type locality for genus
  • † Lawnia taylorensis – type locality for species
• † Lebachia
• † Lecanospira – type locality for genus
  • † Lecanospira lecanospiroides – type locality for species
  • † Lecanospira sanctisabae
• † Lecythiocrinus
• † Leella
  • † Leella bellula – or unidentified comparable form
• † Leioclema
  • † Leioclema dozierense – type locality for species
  • † Leioclema shumardi
• † Leiorhynchoidea
  • † Leiorhynchoidea amygdaloidea – type locality for species
  • † Leiorhynchoidea rotundidorsa
  • † Leiorhynchoidea scelesta
  • † Leiorhynchoidea sublamellosa
  • † Leiorhynchoidea sulcata
• † Leiorhynchus
  • † Leiorhynchus bisulcatum
  • † Leiorhynchus nobilis
• † Leiostegium
• † Lekiskochiton – type locality for genus
  • † Lekiskochiton fornicis – type locality for species
• † Lemonea
  • † Lemonea cylindrica
  • † Lemonea digitata – type locality for species
  • † Lemonea simplex – type locality for species
• † Leonardophyllum
  • † Leonardophyllum kingi – type locality for species
• † Lepetopsis
  • † Lepetopsis capitanensis – type locality for species
  • † Lepetopsis haworthi – type locality for species
• † Lepidocrania – type locality for genus
  • † Lepidocrania sparsispinosa – type locality for species
  • † Lepidocrania sublamellosa
  • † Lepidocrania tardispinosa – type locality for species
• † Lepidocyclus
  • † Lepidocyclus laddi
  • † Lepidocyclus manniensis
• † Lepidophyllum
• † Lepidospirifer
  • † Lepidospirifer angulatus – type locality for species
  • † Lepidospirifer costellus – type locality for species
  • † Lepidospirifer demissus – type locality for species
  • † Lepidospirifer inferus
• † Leptagonia
• † Leptalosia
  • † Leptalosia ovalis
• † Leptodesma
  • † Leptodesma falcata
  • † Leptodesma gouldii
  • † Leptodesma guadalupensis
• † Leptodus
  • † Leptodus americana
  • † Leptodus guadalupensis – type locality for species
• † Leptomphalus
  • † Leptomphalus micidus – type locality for species
• † Leptoplastides
• † Leptoptygma
  • † Leptoptygma subtilistriatum
• † Leptotygria
• † Lercaritubus
  • † Lercaritubus problematicus
• † Lesueurilla
• † Leurosina – type locality for genus
  • † Leurosina delicata
  • † Leurosina lata – type locality for species
  • † Leurosina marginata
  • † Leurosina serratoseptata
  • † Leurosina sinesulca
  • † Leurosina vulgarica

• 

  Life restoration of the Early Ordovician nautiloid cephalopod Levisoceras

  † Levisoceras
  • † Levisoceras contractum – type locality for species
• † Levizygopleura
  • † Levizygopleura williamsi
• † Lichenaria
• † Limatulina – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Limatulina striaticostata – type locality for species
• † Limbella
  • † Limbella costata
  • † Limbella costellata
  • † Limbella limbata – type locality for species
  • † Limbella victorioensis
  • † Limbella wolfcampensis – type locality for species
• † Lindostromella
  • † Lindostromella patula
• † Lindstroemia – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Lindstroemia cylindrica – type locality for species
  • † Lindstroemia permiana
• Lingula
• † Linipalus
  • † Linipalus magnispinus
• † Linoproductus
  • † Linoproductus cora
  • † Linoproductus delicatus
  • † Linoproductus meniscus
  • † Linoproductus nasutus – type locality for species
  • † Linoproductus phosphaticus
  • † Linoproductus prattenianus
  • † Linoproductus waagenianus
• † Liosotella
  • † Liosotella costata – type locality for species
  • † Liosotella irregularis – type locality for species
  • † Liosotella opima – type locality for species
  • † Liosotella parva – type locality for species
  • † Liosotella popei – type locality for species
  • † Liosotella rotunda
  • † Liosotella spinumbona
  • † Liosotella tetragonalis – type locality for species
  • † Liosotella texana
  • † Liosotella wordensis – type locality for species
• † Liraria
  • † Liraria lirata
• † Lirellaria
  • † Lirellaria costellata
  • † Lirellaria crassa
  • † Lirellaria diabloensis
• † Liroceras
  • † Liroceras globulare
• † Lissochonetes
  • † Lissochonetes geinitzianus
  • † Lissochonetes parvisulcatus
• † Lithostrotionella – tentative report
• † Llanoaspis
  • † Llanoaspis virginica
• † Llanoceras – type locality for genus
  • † Llanoceras gracile – type locality for species
• † Llanocystis – type locality for genus
  • † Llanocystis wilbernsensis – type locality for species
• † Lobatannularia
• † Lophonema
• † Lophophyllidium
  • † Lophophyllidium absitum – type locality for species
  • † Lophophyllidium compressum
  • † Lophophyllidium confertum – or unidentified comparable form
  • † Lophophyllidium cyathaxoniaforme – type locality for species
  • † Lophophyllidium distortum
  • † Lophophyllidium dunbari
  • † Lophophyllidium erugum – type locality for species
  • † Lophophyllidium lanosum – type locality for species
  • † Lophophyllidium magnocolumnare – type locality for species
  • † Lophophyllidium plummeri – type locality for species
  • † Lophophyllidium profundum
  • † Lophophyllidium proliferum
  • † Lophophyllidium radicosum
  • † Lophophyllidium skinneri – type locality for species
  • † Lophophyllidium texanum
  • † Lophophyllidium vallum – type locality for species
  • † Lophophyllidium vidriensis – type locality for species
  • † Lophophyllidium westii
  • † Lophophyllidium wewokanum
• † Lophotichium
  • † Lophotichium dugoutense – type locality for species
  • † Lophotichium rotundiseptum – type locality for species
  • † Lophotichium simulatum – type locality for species
• † Lowenstamia – type locality for genus
  • † Lowenstamia ampla
  • † Lowenstamia texana – type locality for species
• † Loxonema – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Loxonema inconspicuum – type locality for species
• † Loxophragmus – type locality for genus
  • † Loxophragmus ellipticus – type locality for species
• † Luederia – type locality for genus
  • † Luederia kempi – type locality for species
• † Luterospongia – type locality for genus
  • † Luterospongia texana – type locality for species
• † Lyroschizodus
  • † Lyroschizodus oklahomensis
  • † Lyroschizodus orbicularis – type locality for species

• 

  Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior

  † Lysorophus
  • † Lysorophus tricarinatus
• † Lytvolasma
  • † Lytvolasma aucta – type locality for species

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Contents

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• D
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• F
• G
• H
• I
• J
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• L
• M
• N
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• † Mackinneyella
  • † Mackinneyella hinganensis – or unidentified related form
  • † Mackinneyella praepluriformis – or unidentified comparable form
  • † Mackinneyella robustiformis
• † Macluritella
  • † Macluritella gyroceras
  • † Macluritella uniangulata
• † Macrochilina – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Macrochilina modesta – type locality for species
• † Macrodontacanthus – type locality for genus
  • † Macrodontacanthus kingi – type locality for species
• † Macroporella
  • † Macroporella verticillata – type locality for species
• † Madarosia
  • † Madarosia anterolamellata
  • † Madarosia pentagona
• † Maeandrostia
  • † Maeandrostia kansasensis
• † Manipora
  • † Manipora amicarum
  • † Manipora magna – type locality for species
  • † Manipora trapezoidalis – type locality for species
• † Manzanospira
  • † Manzanospira carinata
  • † Manzanospira manzanicum
  • † Manzanospira wordensis – type locality for species
• † Marathonites
  • † Marathonites jpsmithi – type locality for species
  • † Marathonites moorei – type locality for species
  • † Marathonites vidriensis – type locality for species
• † Marginatia
• † Marginifera
  • † Marginifera cristobalensis
  • † Marginifera manzanica
  • † Marginifera opima
  • † Marginifera texana
• † Martinia
  • † Martinia causaria
  • † Martinia cruenta
  • † Martinia exigua
  • † Martinia fucina
  • † Martinia miranda – type locality for species
  • † Martinia nealranchensis
  • † Martinia rhomboidalis
  • † Martinia wolfcampensis – type locality for species
• † Mastersonia – type locality for genus
  • † Mastersonia driverensis – type locality for species
• † Mckittrickella – type locality for genus
  • † Mckittrickella pratti – type locality for species
• † Mcqueenoceras
• † Meandrostia
  • † Meandrostia tortacloaca
• † Medlicottia
  • † Medlicottia arroyoensis – type locality for species
  • † Medlicottia chozaensis – type locality for species
  • † Medlicottia copei – type locality for species
  • † Medlicottia costellifera – type locality for species
  • † Medlicottia kingorum – type locality for species
  • † Medlicottia milleri – type locality for species
• † Meekella
  • † Meekella angustiplicata
  • † Meekella attenuata
  • † Meekella calathica – type locality for species
  • † Meekella caperata – type locality for species
  • † Meekella circularis
  • † Meekella enormis – type locality for species
  • † Meekella hessensis – type locality for species
  • † Meekella intermedia
  • † Meekella magnifica – type locality for species
  • † Meekella mexicana
  • † Meekella multilirata – type locality for species
  • † Meekella occidentalis – type locality for species
  • † Meekella prionota – type locality for species
  • † Meekella skenoides
  • † Meekella striaticostata
  • † Meekella striatocostata
  • † Meekella texana – type locality for species
• † Meekopora
• † Meekospira
  • † Meekospira choctawensis
  • † Meekospira mimiae – type locality for species
  • † Meekospira peracuta
• † Megactenopetalus
  • † Megactenopetalus kaibabanus
• † Megousia
  • † Megousia auriculata
  • † Megousia definita – type locality for species
  • † Megousia flexuosa
  • † Megousia girtyi – type locality for species
  • † Megousia mucronata
  • † Megousia umbonata
  • † Megousia waageniana – type locality for species
• † Merista
  • † Merista maccullochensis – type locality for species
• † Mesolobus

• 

  Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras

  † Metacoceras
  • † Metacoceras baylorense – type locality for species
  • † Metacoceras cheneyi – type locality for species
  • † Metacoceras inconspicuum
• † Metacrimites
  • † Metacrimites adamsi – type locality for species
  • † Metacrimites defordi – type locality for species
  • † Metacrimites marathonensis – type locality for species
  • † Metacrimites newelli – type locality for species
• † Metaindocrinus
  • † Metaindocrinus cooperi – type locality for species
• † Metalegoceras
  • † Metalegoceras aricki – type locality for species
  • † Metalegoceras baylorense – type locality for species
  • † Metalegoceras schucherti – type locality for species
• † Metaperrinites
  • † Metaperrinites cumminsi – type locality for species
  • † Metaperrinites vicinus
• † Metapronorites
  • † Metapronorites pseudotimorensis
• † Metarmosaurus – type locality for genus
  • † Metarmosaurus fossatus – type locality for species

• 

  Restoration of the Cambrian trilobite Meteoraspis

  † Meteoraspis
  • † Meteoraspis metra
• † Metoptoma
  • † Metoptoma texana – type locality for species
• † Metriolepis – type locality for genus
  • † Metriolepis carotica
  • † Metriolepis diabloensis
  • † Metriolepis exserta
  • † Metriolepis irenae
  • † Metriolepis larina
  • † Metriolepis nabis
  • † Metriolepis pedicosa
  • † Metriolepis pinea
  • † Metriolepis pulvinata – type locality for species
  • † Metriolepis scrupea
  • † Metriolepis tegulata – type locality for species
  • † Metriolepis ziczac – type locality for species
• † Mexicoceras
  • † Mexicoceras guadalupense – type locality for species
• † Michelinoceras – tentative report
  • † Michelinoceras guadalupense – type locality for species
• † Micraphelia
  • † Micraphelia pumilis
  • † Micraphelia scitula
  • † Micraphelia subalata

• 

  Life restoration of the Permian amphibian Micraroter

  † Micraroter – tentative report
  • † Micraroter erythrogeios
• † Microantyx
  • † Microantyx botoni
  • † Microantyx mudgei
• † Microbaltoceras – type locality for genus
  • † Microbaltoceras minore – type locality for species
• † Microdoma
  • † Microdoma conicum
  • † Microdoma gavinae
• † Microptychis
  • † Microptychis insolita – type locality for species
• † Microstaura – type locality for genus
  • † Microstaura doliolum
• † Microstaurella – type locality for genus
  • † Microstaurella minima – type locality for species
  • † Microstaurella parva – type locality for species
• † Millerella
  • † Millerella marblensis
• † Millkoninckioceras
  • † Millkoninckioceras bibbi
• † Miltonella – type locality for genus
  • † Miltonella shupei – type locality for species
• † Minammodytes
• † Minilya
  • † Minilya girtyi
• † Minispongia
  • † Minispongia constricta – type locality for species
• † Mizzia
  • † Mizzia velebitana
• † Monaxoradiata – type locality for genus
  • † Monaxoradiata lamina – type locality for species
• † Monodiexodina
  • † Monodiexodina bispatulata
  • † Monodiexodina linearis – tentative report
• † Monophyllum
  • † Monophyllum cassum – type locality for species
• † Monotis – tentative report
• † Moorefieldella
• † Mooreoceras
  • † Mooreoceras giganteum – type locality for species
• † Mooreocrinus
  • † Mooreocrinus magdalensis – type locality for species
• † Moreauoceras
  • † Moreauoceras milleri
• † Morrowcrinus – tentative report
• † Mourlonia
• † Multistella – type locality for genus
  • † Multistella porosa
• † Murchisonia
  • † Murchisonia gouldi
• † Muriceras – type locality for genus
  • † Muriceras anomalum – type locality for species
  • † Muriceras curviseptatum – type locality for species
  • † Muriceras gracile – type locality for species
  • † Muriceras hebetum – type locality for species
  • † Muriceras micromurus – type locality for species
  • † Muriceras moderatum – type locality for species
  • † Muriceras murus – type locality for species
• † Myalina
  • † Myalina acutirostris – type locality for species
  • † Myalina aviculoides
  • † Myalina copei – type locality for species
  • † Myalina lamellosa – type locality for species
  • † Myalina permiana
  • † Myalina plicata – type locality for species
  • † Myalina pliopetina – type locality for species
  • † Myalina recta – tentative report
  • † Myalina squamosa – tentative report
  • † Myalina wyomingensis – tentative report

• 

  Life restoration of the Permian synapsid (mammal precursor) Mycterosaurus

  † Mycterosaurus – type locality for genus
  • † Mycterosaurus longiceps – type locality for species
• † Myoconcha
  • † Myoconcha costulata – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
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• U
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• W
• X
• Y
• Z

• † Nabespecha
  • † Nabespecha leonardia – type locality for species
• † Nanobamus – type locality for genus
  • † Nanobamus macrorhinus – type locality for species
• † Nasocephalus
  • † Nasocephalus flabellatus
  • † Nasocephalus nasutus
• † Naticopsis
  • † Naticopsis judithae
  • † Naticopsis remex
  • † Naticopsis shumardi – tentative report
  • † Naticopsis transversa – type locality for species
• † Neilsonia
  • † Neilsonia laticincta

• 

  Neldasaurus

  † Neldasaurus
  • † Neldasaurus wrightae
• † Nemejcopteris
• † Neoaganides
  • † Neoaganides grahamensis
• † Neocalamites – or unidentified comparable form
• † Neochonetes
  • † Neochonetes costellata – type locality for species
  • † Neochonetes granulifer
  • † Neochonetes liratus
  • † Neochonetes magna
  • † Neochonetes meekanus – tentative report
  • † Neochonetes parvus
  • † Neochonetes transversalis
  • † Neochonetes victoriana – type locality for species
• † Neocrimites
  • † Neocrimites defordi
  • † Neocrimites type locality for species – informal
• † Neodimorphoceras
  • † Neodimorphoceras lenticulare
  • † Neodimorphoceras oklahomae
  • † Neodimorphoceras plummerae – type locality for species
  • † Neodimorphoceras texanum
• † Neogeoceras
  • † Neogeoceras girtyi
• † Neoglyphioceras
  • † Neoglyphioceras entogonum
• † Neoicoceras
• † Neokoninckophyllum
  • † Neokoninckophyllum cooperi – type locality for species
  • † Neokoninckophyllum deciensis – type locality for species
  • † Neokoninckophyllum dunbari – type locality for species
• † Neophricadothyris
  • † Neophricadothyris conara – type locality for species
  • † Neophricadothyris crassibecca – type locality for species
  • † Neophricadothyris transversa
• † Neopopanoceras
  • † Neopopanoceras bowmani – type locality for species
• † Neopronorites
  • † Neopronorites bakeri – type locality for species
  • † Neopronorites boesei
• † Neoshumardites
  • † Neoshumardites gaptankensis

• 

  Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer

  † Neospirifer
  • † Neospirifer amphigyus – type locality for species
  • † Neospirifer apothescelus – type locality for species
  • † Neospirifer bakeri – type locality for species
  • † Neospirifer cameratus – tentative report
  • † Neospirifer formulosus
  • † Neospirifer huecoensis – type locality for species
  • † Neospirifer kansasensis
  • † Neospirifer mansuetus
  • † Neospirifer neali
  • † Neospirifer notialis
  • † Neospirifer placidus
  • † Neospirifer t. – informal
  • † Neospirifer triplicatus
  • † Neospirifer venezuelensis
• † Neotryplasma
• † Neozeacrinus
  • † Neozeacrinus uddeni – type locality for species

• 

  Fronds of the Carboniferous seed fern Neuropteris

  † Neuropteris
  • † Neuropteris cordata – tentative report
  • † Neuropteris lindahli – or unidentified comparable form
• † Newellites
  • † Newellites richardsoni – type locality for species
• † Newellospongia – type locality for genus
  • † Newellospongia perforata – type locality for species
• † Nicollidina
  • † Nicollidina remscheidensis
• † Nielsenoceras
  • † Nielsenoceras skinneri – type locality for species
• † Niviconia – type locality for genus
  • † Niviconia abrupta
  • † Niviconia globosa
• † Norwoodia
  • † Norwoodia quadrangularis
• † Nothopindax
  • † Nothopindax egregius
• † Notothyris
  • † Notothyris gillilandensis
  • † Notothyris planiplicata
  • † Notothyris venusta – type locality for species
• † Novaculapermia – type locality for genus
  • † Novaculapermia boydi – type locality for species
• † Novlepatella
  • † Novlepatella beedei – type locality for species
  • † Novlepatella parrishi
  • † Novlepatella patella – type locality for species
• † Novoameura
  • † Novoameura vitrumons – type locality for species
• † Nucleospira
  • † Nucleospira cunctata

• 

  Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula

  Nucula – report made of unidentified related form or using admittedly obsolete nomenclature
• Nuculana
• † Nuculavus
  • † Nuculavus levatiformis
  • † Nuculavus okawensis – or unidentified related form
• † Nuculopsis
  • † Nuculopsis girtyi
• † Nudauris
  • † Nudauris convexa
  • † Nudauris diabloensis
  • † Nudauris enigmatica – type locality for species
  • † Nudauris linospina – type locality for species
  • † Nudauris reticulata – type locality for species
  • † Nudauris splendens – type locality for species
  • † Nudauris transversa
  • † Nudauris tribulosa
  • † Nudauris whitei
• † Nuia
  • † Nuia siberica
• † Nybyoceras
  • † Nybyoceras montoyense
• † Nyctopora
  • † Nyctopora mutabilis – type locality for species
  • † Nyctopora nondescripta – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
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• U
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• W
• X
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• † Obliquipecten
  • † Obliquipecten granti
• † Ochmazochiton – type locality for genus
  • † Ochmazochiton comptus – type locality for species
• † Odonopteris
• † Odontopteris
  • † Odontopteris conferta
  • † Odontopteris fischeri
  • † Odontopteris genuina
  • † Odontopteris neuropteroides
  • † Odontopteris osmundaeformis – or unidentified comparable form
• † Oistodus
• † Oldhamina – tentative report
• † Olenus
• † Oligorthis
  • † Oligorthis arbucklensis
• † Ombonia
  • † Ombonia guadalupensis
  • † Ombonia invecta
• † Omphalotrochus
  • † Omphalotrochus alleni – type locality for species
  • † Omphalotrochus cochisensis – type locality for species
  • † Omphalotrochus hessensis – type locality for species
  • † Omphalotrochus obtusispira – type locality for species
  • † Omphalotrochus spinosus – type locality for species
  • † Omphalotrochus wolfcampensis – type locality for species
• † Oncosarina
  • † Oncosarina rotunda
  • † Oncosarina spinicostata – type locality for species
  • † Oncosarina whitei
• † Oneotoceras
• † Onniella
  • † Onniella plicata – type locality for species
  • † Onniella quadrata
• † Onychochilus

• 

  Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Ophiacodon

  † Ophiacodon – type locality for genus
  • † Ophiacodon major – type locality for species
  • † Ophiacodon retroversus – type locality for species
  • † Ophiacodon uniformis – type locality for species
• † Ophileta
  • † Ophileta polygyratus
  • † Ophileta rotuliformis
• † Opisthotreta
  • † Opisthotreta depressa
• † Orbicoelia
  • † Orbicoelia guadalupensis
  • † Orbicoelia inflata
  • † Orbicoelia tholiaphor – type locality for species
  • † Orbicoelia tumibilis
• † Orbiculoidea
  • † Orbiculoidea missouriensis
• † Ormoceras
  • † Ormoceras dartoni

• 

  Restoration of the Carboniferous-Permian cartilaginous fish Orodus

  † Orodus
  • † Orodus corrugatus – type locality for species
• † Orospira
• † Orthacanthus
  • † Orthacanthus compressus
  • † Orthacanthus texensis
• † Orthisina – report made of unidentified related form or using admittedly obsolete nomenclature
• † Orthoceracone
• † Orthograptus
  • † Orthograptus fastigatus
  • † Orthograptus quadrimucronatus
  • † Orthograptus thorsteinssoni
• † Orthomyalina
  • † Orthomyalina subquadrata
• † Orthonema
  • † Orthonema paedice – type locality for species
  • † Orthonema paxillus – type locality for species
  • † Orthonema salteri
  • † Orthonema striatonodosum
  • † Orthonema telescopiforme – type locality for species
• † Orthonychia
  • † Orthonychia bowsheri – type locality for species
• † Orthotetella
  • † Orthotetella wolfcampensis – type locality for species
• † Orthotetes
  • † Orthotetes mutabilis – or unidentified comparable form
• † Orthothetina
• † Orthotichia
  • † Orthotichia hueconiana – type locality for species
  • † Orthotichia irregularis
  • † Orthotichia kozlowskii – type locality for species
  • † Orthotichia newelli – type locality for species
• † Ossimimus – type locality for genus
  • † Ossimimus robustus
• † Ostodolepis – type locality for genus
  • † Ostodolepis brevispinatus – type locality for species
• † Oulodus
  • † Oulodus cristagalli – tentative report
• † Ovatia
• † Oxyprora
  • † Oxyprora capitanensis – type locality for species
  • † Oxyprora missouriensis
• † Ozarkina
  • † Ozarkina typica
• † Ozarkodina
  • † Ozarkodina bohemica
  • † Ozarkodina wurmi – tentative report
• † Ozawainella – tentative report
  • † Ozawainella inflata – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Pachylyroceras
  • † Pachylyroceras cloudi
  • † Pachylyroceras newsomi
• † Padgettia
  • † Padgettia readi – type locality for species
• † Paladin
  • † Paladin helmsensis
• † Palaeanodonta
• † Palaeocaudina
  • † Palaeocaudina kansasensis
• † Palaeoceras – type locality for genus
  • † Palaeoceras mutabile – type locality for species
  • † Palaeoceras undulatum – type locality for species
• † Palaeogeminella
  • † Palaeogeminella folkii
• † Palaeoneilo
  • † Palaeoneilo taffiana

• 

  Fossilized skeleton of the Permian bony fish Palaeoniscum

  † Palaeoniscus – tentative report
• † Palaeophyllum
  • † Palaeophyllum cateniforme – type locality for species
  • † Palaeophyllum gracile – type locality for species
  • † Palaeophyllum margaretae – type locality for species
  • † Palaeophyllum thomi
• † Palaeostylus
• † Paleochiridota
  • † Paleochiridota plummerae
  • † Paleochiridota radiata – type locality for species
  • † Paleochiridota terquemi – type locality for species
  • † Paleochiridota waylandensis – type locality for species
• † Paleofavosites
  • † Paleofavosites kuellmeri – type locality for species
  • † Paleofavosites prayi – type locality for species
  • † Paleofavosites sparsus – type locality for species
• † Paleowaagia
  • † Paleowaagia cooperi – type locality for species
• † Paleyoldia
  • † Paleyoldia glabra
• † Panderodus
  • † Panderodus equicostatus
  • † Panderodus panderi
  • † Panderodus unicostatus
• † Panduralimulus – type locality for genus
  • † Panduralimulus babcocki – type locality for species

• 

  Pantylus

  † Pantylus – type locality for genus
  • † Pantylus coicodus – type locality for species
  • † Pantylus cordatus – type locality for species
• † Parabolinella
  • † Parabolinella triarthroides – tentative report
  • † Parabolinella triathroides – tentative report
• † Paraboultonia – type locality for genus
  • † Paraboultonia splendens – type locality for species
• † Paraceltites
  • † Paraceltites altudensis – type locality for species
  • † Paraceltites elegans
  • † Paraceltites multicostatus – type locality for species
  • † Paraceltites ornatus
• † Paraconularia
  • † Paraconularia leonardensis
• † Paracravenoceras
  • † Paracravenoceras barnettense – type locality for species
  • † Paracravenoceras ozarkense
• † Paraduplophyllum
  • † Paraduplophyllum amplexoides – type locality for species
  • † Paraduplophyllum multiplicatum – type locality for species
  • † Paraduplophyllum nealranchense – type locality for species
  • † Paraduplophyllum oppositum – type locality for species
  • † Paraduplophyllum tubaeformis – type locality for species
  • † Paraduplophyllum vermiculare – type locality for species
• † Parafenestralia
  • † Parafenestralia gregalis – or unidentified comparable form
• † Parafusulina
  • † Parafusulina amoena – type locality for species
• † Paragastrioceras
  • † Paragastrioceras type locality for species – informal
• † Paragoniozona
  • † Paragoniozona granulostriata
  • † Paragoniozona multilirata – or unidentified comparable form
  • † Paragoniozona nodolirata – or unidentified comparable form
• † Paraheritschioides
  • † Paraheritschioides californiense
• † Parahystricurus
• † Parajuresania
  • † Parajuresania nebrascensis
• † Paralegoceras
  • † Paralegoceras texanum – type locality for species
• † Parallelodon
  • † Parallelodon multistriatus
• † Paralleynia – tentative report
  • † Paralleynia acclinis – type locality for species
• † Paramphicrinus
• † Paranorella
  • † Paranorella aquilonia
  • † Paranorella comptula
• † Paraparchites
  • † Paraparchites marathonensis – type locality for species
• † Parapenascoceras
  • † Parapenascoceras sanandreasense
• † Paraperrinites
  • † Paraperrinites subcumminsi – type locality for species
• † Paraplethopeltis
• † Parapolypora
  • † Parapolypora daurica – or unidentified comparable form
  • † Parapolypora novella – or unidentified comparable form
  • † Parapolypora sparsa – or unidentified related form
• † Parareteograptus
• † Paraschistoceras
  • † Paraschistoceras costiferum – type locality for species
  • † Paraschistoceras hildrethi
  • † Paraschistoceras reticulatum
• † Paraschizodus
  • † Paraschizodus rothi – type locality for species
• † Paraschwagerina
  • † Paraschwagerina shuleri – type locality for species
• † Parashumardites
  • † Parashumardites fornicatus – type locality for species
  • † Parashumardites sellardsi – type locality for species
  • † Parashumardites senex
• † Paraspiriferina
  • † Paraspiriferina amoena
  • † Paraspiriferina billingsi
  • † Paraspiriferina cellulana – type locality for species
  • † Paraspiriferina evax – type locality for species
  • † Paraspiriferina laqueata – type locality for species
  • † Paraspiriferina paginata
  • † Paraspiriferina pulchra
  • † Paraspiriferina rotundata – type locality for species
  • † Paraspiriferina sapinea
  • † Paraspiriferina setulosa
  • † Paraspiriferina sulcata
• † Parauvanella
  • † Parauvanella minima
• † Parenteletes
  • † Parenteletes cooperi
  • † Parenteletes superbus – type locality for species
• † Pariotichus – type locality for genus
  • † Pariotichus brachyops – type locality for species
• † Parioxys – type locality for genus
  • † Parioxys bolli – type locality for species
  • † Parioxys ferricolus – type locality for species
• † Parulocrinus
  • † Parulocrinus americanus – type locality for species
• Patella – tentative report
• † Patellilabia
  • † Patellilabia junior – type locality for species
• † Patellostium
  • † Patellostium ourayensis
• † Paucipora
  • † Paucipora subborealis – or unidentified comparable form
• † Paucispinifera
  • † Paucispinifera auriculata
  • † Paucispinifera comancheana – type locality for species
  • † Paucispinifera costellata – type locality for species
  • † Paucispinifera guadalupensis
  • † Paucispinifera indentata – type locality for species
  • † Paucispinifera intermedia
  • † Paucispinifera latidorsata
  • † Paucispinifera magnispina
  • † Paucispinifera parasulcata
  • † Paucispinifera quadrata – type locality for species
  • † Paucispinifera rara
  • † Paucispinifera rectangulata
  • † Paucispinifera spinosa
  • † Paucispinifera sulcata – type locality for species
  • † Paucispinifera suspecta
  • † Paucispinifera transversa – type locality for species
  • † Paucispinifera tumida

• 

  Fossils of the Late Devonian-Permian fern-like fronds Pecopteris

  † Pecopteris
  • † Pecopteris arborescens
  • † Pecopteris candolleana
  • † Pecopteris densifolia – tentative report
  • † Pecopteris grandifolia
  • † Pecopteris hemitelioides
  • † Pecopteris tenuinervis
  • † Pecopteris unita
• † Pedanochiton – type locality for genus
  • † Pedanochiton discomptus – type locality for species
• † Pedavis
  • † Pedavis biexoramus
• † Pegmavalvula
  • † Pegmavalvula delicata – type locality for species
  • † Pegmavalvula gloveri – type locality for species

• 

  Life restoration of the Permian amphibian Pelodosotis

  † Pelodosotis – type locality for genus
  • † Pelodosotis elongatum – type locality for species
• † Peniculauris
  • † Peniculauris bassi
  • † Peniculauris costata – type locality for species
  • † Peniculauris imitata
  • † Peniculauris ivesi
  • † Peniculauris peniculifera
  • † Peniculauris subcostata – type locality for species
  • † Peniculauris transversa
• † Penniretepora
• † Pennoceras
  • † Pennoceras seamani – type locality for species
• † Perimestocrinus
  • † Perimestocrinus excavatus – type locality for species
  • † Perimestocrinus moseleyi – type locality for species
• † Peripetoceras
  • † Peripetoceras bridgeportense – type locality for species
• † Peritrochia – type locality for genus
  • † Peritrochia erebus
• † Permanomia
  • † Permanomia texana – type locality for species
• † Permoconcha
  • † Permoconcha conica – type locality for species
  • † Permoconcha tabulata – type locality for species
• † Permocorynella
  • † Permocorynella capitanense – type locality for species
• † Permophorus
  • † Permophorus albequus
  • † Permophorus lunulus – type locality for species
  • † Permophorus mexicanus
• † Permophricodothyris
  • † Permophricodothyris bullata – type locality for species
  • † Permophricodothyris cordata – type locality for species
• † Pernopecten
  • † Pernopecten obliquus
  • † Pernopecten symmetricus
  • † Pernopecten yini
• † Perrinites
  • † Perrinites gouldi – type locality for species
  • † Perrinites hilli – type locality for species
  • † Perrinites tardus – type locality for species
  • † Perrinites vidriensis
• † Peruvispira
  • † Peruvispira delicata

• 

  Fossilized tooth of the Carboniferous-Permian shark Petalodus

  † Petalodus
• † Petasmaia
  • † Petasmaia expansa
• † Petasmatherus
  • † Petasmatherus depressus
  • † Petasmatherus mundus
  • † Petasmatherus nitidus – type locality for species
  • † Petasmatherus opulus – type locality for species
  • † Petasmatherus pumilus – type locality for species
  • † Petasmatherus pusillus
  • † Petasmatherus recticardinatus
• † Petrocrania
  • † Petrocrania diabloensis – type locality for species
  • † Petrocrania exasperata
  • † Petrocrania modesta
  • † Petrocrania septifera – type locality for species
  • † Petrocrania teretis – type locality for species
• † Phaneroceras
  • † Phaneroceras compressum
  • † Phaneroceras lenticulare – type locality for species
• † Phanerotrema – tentative report
• † Pharkidonotus
  • † Pharkidonotus harrodi
  • † Pharkidonotus megalius – or unidentified related form
  • † Pharkidonotus percarinatus
  • † Pharkidonotus westi – type locality for species
• † Phasmatocycas
  • † Phasmatocycas spectabilis – type locality for species
• † Phestia
  • † Phestia bellistriata
• † Philhedra

• 

  Life restoration of the Carboniferous-Permian amphibian Phlegethontia .

  † Phlegethontia – tentative report
• † Phonerpeton
  • † Phonerpeton pricei – type locality for species
  • † Phonerpeton whitei – type locality for species
• † Phrenophoria
  • † Phrenophoria anterocostata
  • † Phrenophoria bicostata
  • † Phrenophoria compressa
  • † Phrenophoria corpulenta
  • † Phrenophoria depressa
  • † Phrenophoria incomitata
  • † Phrenophoria irregularis
  • † Phrenophoria nesiotes
  • † Phrenophoria nudumbona – type locality for species
  • † Phrenophoria pentagonalis – type locality for species
  • † Phrenophoria perplexa
  • † Phrenophoria pinguiformis
  • † Phrenophoria pinguis – type locality for species
  • † Phrenophoria planifrons
  • † Phrenophoria planiventra
  • † Phrenophoria repugnans
  • † Phrenophoria subcarinata – type locality for species
  • † Phrenophoria ventricosa – type locality for species
  • † Phrenophoria vetula
• † Phricodothyris
  • † Phricodothyris catatona
  • † Phricodothyris guadalupensis
• † Phymatopleura
  • † Phymatopleura brazoensis
  • † Phymatopleura nodosa
• † Pileochiton – type locality for genus
  • † Pileochiton cancellus – type locality for species
• † Pileolites – type locality for genus
  • † Pileolites baccatus – type locality for species
• † Piloceras
• † Pinnularia
• † Pintoceras – type locality for genus
  • † Pintoceras postvenatum – type locality for species
• † Pirasocrinus
  • † Pirasocrinus invaginatus – type locality for species
• † Pithodea
  • † Pithodea tornatilis – or unidentified comparable form

• 

  Fossilized shell of the Ordovician brachiopod Plaesiomys

  † Plaesiomys
  • † Plaesiomys bellistriatus
  • † Plaesiomys subquadrata
• † Plagioglypta
  • † Plagioglypta annulostriata
  • † Plagioglypta girtyi
• † Plagiostoma – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Plagiostoma deltoideum
• † Planispina
  • † Planispina conida
• † Planotectus
  • † Planotectus cymbellatus – type locality for species
• † Platyceras

• 

  Life restoration of the Carboniferous-Permian sail-backed amphibian Platyhystrix

  † Platyhystrix – or unidentified comparable form
• † Platysaccus
  • † Platysaccus papilionis
  • † Platysaccus saarensis
• † Platyzona
  • † Platyzona anguispira – type locality for species
  • † Platyzona cancellata – type locality for species
  • † Platyzona pagoda – type locality for species
  • † Platyzona rotunda
• † Plaxocrinus
  • † Plaxocrinus laxus – type locality for species
  • † Plaxocrinus oeconomicus – type locality for species
• † Plectelasma
  • † Plectelasma dubium
  • † Plectelasma guadalupense
  • † Plectelasma kingi
  • † Plectelasma nitidum
  • † Plectelasma planidorsatum
• † Plectospira
  • † Plectospira problematica
• † Plectronoceras
  • † Plectronoceras exile – type locality for species
• † Plerodiffia – type locality for genus
  • † Plerodiffia eaglebuttensis – type locality for species
• † Plethospira
  • † Plethospira rotunda – type locality for species
• † Pleurelasma
  • † Pleurelasma costatum

• 

  Fossilized shell of the Carboniferous-Triassic nautiloid cephalopod Pleuronautilus

  † Pleuronautilus
  • † Pleuronautilus cooperi – type locality for species
  • † Pleuronautilus gregarius – type locality for species
  • † Pleuronautilus megaporus – type locality for species
  • † Pleuronautilus mutatus – type locality for species
  • † Pleuronautilus praecursor
  • † Pleuronautilus shumardianus
• † Pleurophorus – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Pleurophorus delawarensis – type locality for species
  • † Pleurophorus occidentalis

• 

  Fossilized shell of a Pleurotomaria slit snail

  Pleurotomaria – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Pleurotomaria arenaria – type locality for species
  • † Pleurotomaria carinifera – type locality for species
  • † Pleurotomaria discoidea – type locality for species
  • † Pleurotomaria elderi – type locality for species
  • † Pleurotomaria halliana – type locality for species
  • † Pleurotomaria mica – type locality for species
  • † Pleurotomaria neglecta – type locality for species
  • † Pleurotomaria perornata – type locality for species
  • † Pleurotomaria planulata – type locality for species
  • † Pleurotomaria proutiana – type locality for species
  • † Pleurotomaria putilla
  • † Pleurotomaria richardsoni – type locality for species
• † Plicochonetes
  • † Plicochonetes ornatus – or unidentified comparable form
• † Plummeroceras
  • † Plummeroceras plummeri – type locality for species
• † Poacordaites
  • † Poacordaites tenuifolius – or unidentified comparable form
• † Podozamites
• † Poikilosakos
  • † Poikilosakos informis
  • † Poikilosakos petaloides
• † Polidevcia
  • † Polidevcia bellistriata
• † Polyacrodus
  • † Polyacrodus lapalomensis – type locality for species
  • † Polyacrodus ritchiei – type locality for species
  • † Polyacrodus wichitaensis
  • † Polyacrodus zideki – type locality for species
• † Polydiexodina
  • † Polydiexodina shumardi
• † Polylophidium – type locality for genus
  • † Polylophidium discus – type locality for species
• † Polymorpharia
  • † Polymorpharia polymorpha
• † Polypora
  • † Polypora andina
  • † Polypora balkhaschensiformis
  • † Polypora bassleri – or unidentified related form
  • † Polypora crassa – or unidentified comparable form
  • † Polypora darashamensis – or unidentified comparable form
  • † Polypora elliptica – or unidentified related form
  • † Polypora fujimotoi – or unidentified related form
  • † Polypora halliana – or unidentified related form
  • † Polypora hirsuta
  • † Polypora hivatchensis – or unidentified related form
  • † Polypora irregularis – or unidentified comparable form
  • † Polypora keyserlingi – or unidentified related form
  • † Polypora mexicana
  • † Polypora nodocarinata
  • † Polypora soyanensis
  • † Polypora virga – or unidentified comparable form
  • † Polypora vitiosa – or unidentified related form
• † Polyporella
  • † Polyporella perturbata
  • † Polyporella ulakhanensis – or unidentified comparable form
• † Polysiphon – type locality for genus
  • † Polysiphon mirabilis – type locality for species
• † Polysiphonaria – type locality for genus
  • † Polysiphonaria flabellata – type locality for species
  • † Polysiphonaria flabellatum
• † Pontisia
  • † Pontisia costata
  • † Pontisia franklinensis
  • † Pontisia kingi – type locality for species
  • † Pontisia longicosta
  • † Pontisia magnicostata
  • † Pontisia nanas
  • † Pontisia parva
  • † Pontisia robusta
  • † Pontisia stehlii – type locality for species
  • † Pontisia truncata
  • † Pontisia ventricola
  • † Pontisia wolfcampensis
• † Popanoceras
  • † Popanoceras walcotti – type locality for species
• † Posidonia
• † Pragnellia
  • † Pragnellia delicatula – type locality for species
• † Prehoffmannia – type locality for genus
  • † Prehoffmannia milleri – type locality for species
• † Preperonidella
  • † Preperonidella delicata
  • † Preperonidella rigbyi
• † Preshumardites
  • † Preshumardites gaptankensis
  • † Preshumardites illinoisensis
  • † Preshumardites stainbrooki – type locality for species
• Priscopedatus
  • † Priscopedatus bullatus – type locality for species
  • † Priscopedatus buno – type locality for species
  • † Priscopedatus radiatus – type locality for species
  • † Priscopedatus stellatus – type locality for species
• † Procostatoria – type locality for genus
  • † Procostatoria cooperi
  • † Procostatoria gloveri – type locality for species
  • † Procostatoria sexaradiata
  • † Procostatoria sexradiata
• † Prodentalium
  • † Prodentalium canna
  • † Prodentalium raymondi
• † Productina
  • † Productina sampsoni
• † Productus
  • † Productus calhounianus – tentative report
  • † Productus hermosanus
  • † Productus mexicanus – type locality for species
  • † Productus norwoodii – tentative report
  • † Productus semistriatus
• † Progyrolepis
  • † Progyrolepis tricessimalaris – type locality for species
• † Properrinites
  • † Properrinites bakeri
  • † Properrinites boesei – type locality for species
  • † Properrinites type locality for species – informal
• † Propinacoceras
• † Proplina
• † Propopanoceras
  • † Propopanoceras postsimense
• † Prorichthofenia
• † Proshumardites
  • † Proshumardites primus
• † Prostacheoceras
  • † Prostacheoceras skinneri – type locality for species
  • † Prostacheoceras type locality for species – informal
• † Prothalassoceras
  • † Prothalassoceras caddoense – type locality for species
  • † Prothalassoceras kingorum
  • † Prothalassoceras welleri – type locality for species
• † Protocaptorhinus – type locality for genus
  • † Protocaptorhinus pricei – type locality for species
• † Protoretepora
  • † Protoretepora ampla – or unidentified comparable form
• † Protorothyris – type locality for genus
  • † Protorothyris archeri – type locality for species
• † Protowentzelella
  • † Protowentzelella cystosa
  • † Protowentzelella kunthi
• † Protrete – type locality for genus
  • † Protrete texanus – type locality for species
• † Protrochiscolithus
  • † Protrochiscolithus alemanensis – type locality for species
• † Prouddenites
  • † Prouddenites primus – type locality for species

• 

  Life restoration of the Devonian-Permian tree fern Psaronius . Auguste Faguet (1877).

  † Psaronius
• † Pseudagnostus
  • † Pseudagnostus nordicus
• † Pseudoalbaillella
  • † Pseudoalbaillella cona – type locality for species
  • † Pseudoalbaillella fusiformis – or unidentified related form
  • † Pseudoalbaillella globosus
  • † Pseudoalbaillella scalprata
• † Pseudodielasma – type locality for genus
  • † Pseudodielasma brilli
  • † Pseudodielasma gibberum
  • † Pseudodielasma globulum
  • † Pseudodielasma lobatum
  • † Pseudodielasma magnum
  • † Pseudodielasma minor
  • † Pseudodielasma ovatum – type locality for species
  • † Pseudodielasma perplexa – type locality for species
  • † Pseudodielasma pingue
  • † Pseudodielasma pinyonense
  • † Pseudodielasma plicatum
  • † Pseudodielasma scutulatum – type locality for species
  • † Pseudodielasma subcirculare
  • † Pseudodielasma sulcatum
• † Pseudofusulina
  • † Pseudofusulina powwowensis
• † Pseudogastrioceras
  • † Pseudogastrioceras texanum – type locality for species
• † Pseudohystricurus
• † Pseudoleptodus – type locality for genus
  • † Pseudoleptodus annosus
  • † Pseudoleptodus conicus
  • † Pseudoleptodus cucullatus
  • † Pseudoleptodus getawayensis – type locality for species
  • † Pseudoleptodus giganteus
  • † Pseudoleptodus grandis
  • † Pseudoleptodus granulosus
  • † Pseudoleptodus guadalupensis – type locality for species
  • † Pseudoleptodus lepidus
  • † Pseudoleptodus nodosus
  • † Pseudoleptodus primitivus

• 

  Fossilized shell of a Pseudomelania sea snail

  † Pseudomelania – report made of unidentified related form or using admittedly obsolete nomenclature
• † Pseudomonotis
  • † Pseudomonotis acinetus
  • † Pseudomonotis hawni
  • † Pseudomonotis likharevi
  • † Pseudomonotis speluncaria – tentative report
  • † Pseudomonotis sublaevis
• † Pseudooneotodus
  • † Pseudooneotodus beckmanni
  • † Pseudooneotodus bicornis
  • † Pseudooneotodus linguicornis
• † Pseudoparalegoceras
  • † Pseudoparalegoceras bellilineatum
  • † Pseudoparalegoceras brazoense – type locality for species
• † Pseudopronorites
  • † Pseudopronorites arkansiensis
  • † Pseudopronorites llanoensis – type locality for species
• † Pseudorthoceras
  • † Pseudorthoceras knoxense
• † Pseudoschwagerina
  • † Pseudoschwagerina beedei
  • † Pseudoschwagerina geiseri
  • † Pseudoschwagerina gerontica
  • † Pseudoschwagerina uddeni
• † Pseudovidrioceras
  • † Pseudovidrioceras dunbari
• † Pseudovirgula – type locality for genus
  • † Pseudovirgula tenuis – type locality for species
• † Pseudovoltzia
  • † Pseudovoltzia liebeana
• † Pseudowannerophyllum
  • † Pseudowannerophyllum solidum – type locality for species
• † Pseudozaphrentoides
  • † Pseudozaphrentoides ordinatus – type locality for species
• † Pseudozygopleura
  • † Pseudozygopleura belli – type locality for species
  • † Pseudozygopleura moorei
  • † Pseudozygopleura multicostata
  • † Pseudozygopleura obtusicacuminis
  • † Pseudozygopleura scitula
  • † Pseudozygopleura type locality for species – informal
• † Psilocamara – type locality for genus
  • † Psilocamara hesperia
  • † Psilocamara renfroarum – type locality for species
• Pteria – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Pteria richardsoni
  • † Pteria squamifera – type locality for species
• † Pterinopectinella
  • † Pterinopectinella spinifera
• † Pterocephalia
• † Pterochiton
  • † Pterochiton newelli – type locality for species
  • † Pterochiton spatulatus
  • † Pterochiton texanus – type locality for species
• † Pteronites
• † Ptilotorhynchus
  • † Ptilotorhynchus delicatum
• † Ptychocarpus
• † Ptygmactrum – type locality for genus
  • † Ptygmactrum acutum
  • † Ptygmactrum angulatum
  • † Ptygmactrum depressum
  • † Ptygmactrum extensum – type locality for species
  • † Ptygmactrum mordicum
  • † Ptygmactrum spiculatum – type locality for species
• † Pudoproetus
  • † Pudoproetus chappelensis
• † Pugnax
  • † Pugnax osagensis
• † Pugnoides
  • † Pugnoides bidentatus
  • † Pugnoides elegans
  • † Pugnoides shumardianus
  • † Pugnoides swallovianus
  • † Pugnoides texanus
• † Pulchratia
  • † Pulchratia symmetricus
• † Pulchrilamina
  • † Pulchrilamina spinosa
• † Pulsatospongia – type locality for genus
  • † Pulsatospongia obconica – type locality for species
• † Punctospirifer
  • † Punctospirifer billingsii
  • † Punctospirifer kentuckensis
• † Pustula
  • † Pustula semipunctata

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Contents

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• D
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• † Quadratia
  • † Quadratia egregia – type locality for species
• † Quadrochonetes
  • † Quadrochonetes girtyi – type locality for species
  • † Quadrochonetes praecursor
• † Quasicaecilia – type locality for genus
  • † Quasicaecilia texana – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
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• M
• N
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• † Radiotrabeculopora
  • † Radiotrabeculopora virga – type locality for species
• † Rallacosta
  • † Rallacosta actina
  • † Rallacosta imporcata
  • † Rallacosta laminata
  • † Rallacosta xystica
• † Ramavectus
  • † Ramavectus diabloensis
• † Ramipora
  • † Ramipora hochstetteri – or unidentified related form
• † Ramosothalamiella – type locality for genus
  • † Ramosothalamiella divaricata – type locality for species
• † Rananasus
• † Raphistomina
• † Rasettia
  • † Rasettia capax – or unidentified comparable form
• † Rauserella
  • † Rauserella erratica
• † Rayonnoceras
  • † Rayonnoceras huecoense – type locality for species
• † Rectograptus
  • † Rectograptus amplexicaulis
• † Regrantia
  • † Regrantia linoproductiformis
• † Reiszorhinus – type locality for genus
  • † Reiszorhinus olsoni – type locality for species
• † Renalcis

• 

  Retaria

  † Retaria – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Retaria leplayi – tentative report
• † Reteporidra
  • † Reteporidra orientalis – or unidentified comparable form
• † Retichonetes – tentative report
  • † Retichonetes gibberulus – type locality for species
• † Reticularia
  • † Reticularia cooperensis
• † Reticulariina
  • † Reticulariina bufala
  • † Reticulariina cerina – type locality for species
  • † Reticulariina craticula
  • † Reticulariina echinata
  • † Reticulariina girtyi
  • † Reticulariina hueconiana – type locality for species
  • † Reticulariina impressa
  • † Reticulariina laxa
  • † Reticulariina newelli
  • † Reticulariina phoxa
  • † Reticulariina powwowensis
  • † Reticulariina pristina – type locality for species
  • † Reticulariina pusilla
  • † Reticulariina roscida
  • † Reticulariina senticosa
  • † Reticulariina strigosa
  • † Reticulariina subulata
  • † Reticulariina tetrica
  • † Reticulariina venustula
  • † Reticulariina welleri
• † Reticulatia
  • † Reticulatia americana
  • † Reticulatia huecoensis – type locality for species
  • † Reticulatia robusta
• † Retispira
  • † Retispira bellireticulata
  • † Retispira fragilis – type locality for species
  • † Retispira kansasensis
  • † Retispira lyelli – type locality for species
  • † Retispira meekiana
  • † Retispira modesta
  • † Retispira texana – type locality for species
• † Rhabdiferoceras
• † Rhabdomeson
  • † Rhabdomeson bellum
• † Rhabdotocochlis
  • † Rhabdotocochlis type locality for species – informal
• † Rhamnaria – type locality for genus
  • † Rhamnaria eximia
  • † Rhamnaria grandis
  • † Rhamnaria kingorum – type locality for species
  • † Rhamnaria rectangulata
  • † Rhamnaria shumardi
  • † Rhamnaria sulcata
  • † Rhamnaria tenuispinosa – type locality for species
  • † Rhamnaria vinnula
• † Rhipidomella
  • † Rhipidomella carbonaria
  • † Rhipidomella hessensis – type locality for species
  • † Rhipidomella hispidula – type locality for species
  • † Rhipidomella miscella
  • † Rhipidomella perminuta
• † Rhombopora
  • † Rhombopora lepidodendroides

• 

  Fossilized shell of the Silurian-Eocene articulate brachiopod Rhynchonella

  † Rhynchonella – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Rhynchonella guadalupae – type locality for species
  • † Rhynchonella texana
• † Rhynchopora
  • † Rhynchopora dossena
  • † Rhynchopora guadalupensis
  • † Rhynchopora hebetata
  • † Rhynchopora illinoisensis
  • † Rhynchopora molina – type locality for species
  • † Rhynchopora palumbula – type locality for species
  • † Rhynchopora patula
  • † Rhynchopora sansabensis – type locality for species
  • † Rhynchopora sphenoides
  • † Rhynchopora taylori
  • † Rhynchopora tenera
• † Rhynchotrema
  • † Rhynchotrema iowense
• † Rhytiophora
  • † Rhytiophora blairi – or unidentified comparable form
  • † Rhytiophora calhounensis
• † Rhytisia
  • † Rhytisia rugosa
• † Ribeiria
  • † Ribeiria calcifera
• † Richardsonites
  • † Richardsonites richardsonianus
• † Rigbyella
  • † Rigbyella girtyi – type locality for species
• † Rigrantia
  • † Rigrantia costella
  • † Rigrantia hessensis – type locality for species
  • † Rigrantia planumbona
  • † Rigrantia regularis
• † Rioceras
  • † Rioceras dartoni – type locality for species
  • † Rioceras tubulare – type locality for species
  • † Rioceras wellsi – type locality for species
• † Roadoceras
  • † Roadoceras beedei – type locality for species
  • † Roadoceras roadense – type locality for species
• † Roemerella
  • † Roemerella gigantissima – type locality for species
• † Romeria – type locality for genus
  • † Romeria prima – type locality for species
  • † Romeria texana – type locality for species
• † Rota
  • † Rota martini
• † Rotaia
• † Rothianiscus – type locality for genus
  • † Rothianiscus multidonta – type locality for species
• † Roundyella
  • † Roundyella dorsopapillosa – type locality for species

• 

  Life restoration of the Permian amphibian Rubeostratilia

  † Rubeostratilia – type locality for genus
  • † Rubeostratilia texensis – type locality for species
• † Rugaria
  • † Rugaria crassa
  • † Rugaria hessensis – type locality for species
  • † Rugaria molengraaffi – tentative report
• † Rugatia
  • † Rugatia convexa
  • † Rugatia incurva
  • † Rugatia incurvata – type locality for species
  • † Rugatia mckeei
  • † Rugatia occidentalis
  • † Rugatia paraindica
• † Rugosochonetes
  • † Rugosochonetes burlingtonensis
• † Russellites
  • † Russellites taeniata
• † Ruthenoceras – report made of unidentified related form or using admittedly obsolete nomenclature

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Contents

• A
• B
• C
• D
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• F
• G
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• I
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• M
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• † Saffordophyllum
  • † Saffordophyllum newcombae – type locality for species
• † Sagenodus
• † Sagittoceras – tentative report
  • † Sagittoceras hathawayanum – or unidentified comparable form
• † Sallya
  • † Sallya bicincta
  • † Sallya linsa – type locality for species
  • † Sallya striata – type locality for species
• † Salvadorea
  • † Salvadorea kingae
• † Samaropsis
• † Sandolasma – tentative report
  • † Sandolasma cooperi – type locality for species
• † Sandrewia – type locality for genus
  • † Sandrewia texana – type locality for species
• † Sanniolus – type locality for genus
  • † Sanniolus sigmoides – type locality for species
• † Saportaea – tentative report
• † Sarganostega
  • † Sarganostega murata
  • † Sarganostega pressa
  • † Sarganostega prisca
  • † Sarganostega pyramidalis – type locality for species
  • † Sarganostega transversalis

• 

  Restoration of the Carboniferous amphibian Sauropleura

  † Sauropleura
  • † Sauropleura bairdi – type locality for species
• † Scacchinella
  • † Scacchinella americana
  • † Scacchinella exasperata – type locality for species
  • † Scacchinella gigantea
  • † Scacchinella primitiva
  • † Scacchinella titan – type locality for species
  • † Scacchinella triangulata – type locality for species
• † Scaldia
• † Scapanops – type locality for genus
  • † Scapanops neglecta – type locality for species
• † Scapharina
  • † Scapharina levis
  • † Scapharina quadrata
  • † Scapharina rugosa
• † Sceletonia
  • † Sceletonia crassa
• † Scenesia
  • † Scenesia extensa
• † Schaefferichthys – type locality for genus
  • † Schaefferichthys leudersensis – type locality for species
• † Scheiella – type locality for genus
  • † Scheiella thesaurium – type locality for species
• † Scheiia
  • † Scheiia tuberosa
• † Schematochiton
  • † Schematochiton arthurcooperi
• † Schistoceras
  • † Schistoceras missouriense – type locality for species
• † Schizodus
  • † Schizodus canalis
  • † Schizodus ovatus
  • † Schizodus securus – type locality for species
  • † Schizodus supaiensis
  • † Schizodus texanus – type locality for species
  • † Schizodus ulrichi – or unidentified comparable form
  • † Schizodus wyomingensis
• † Schizograptus
• † Schizopea
• † Schizophoria
• † Schubertella
  • † Schubertella kingi
• † Schuchertella – tentative report
  • † Schuchertella subvexa
• † Schwagerina
  • † Schwagerina bellula
  • † Schwagerina crassitectoria
  • † Schwagerina davisi
  • † Schwagerina diversiformis
  • † Schwagerina emaciata
  • † Schwagerina eolata
  • † Schwagerina franklinensis
  • † Schwagerina grandensis – or unidentified related form
  • † Schwagerina huecoensis
  • † Schwagerina knighti
  • † Schwagerina menziesi – type locality for species
  • † Schwagerina nelsoni
  • † Schwagerina neolata
  • † Schwagerina thompsoni – tentative report
• † Schyroconcha
  • † Schyroconcha spinosa – or unidentified related form

• 

  Restorative portrait of the Permian synapsid (mammal precursor) Secodontosaurus

  † Secodontosaurus
  • † Secodontosaurus obtusidens – type locality for species
  • † Secodontosaurus willistoni – type locality for species
• † Sedenticellula
  • † Sedenticellula sacra
• † Sedgwickia
  • † Sedgwickia topekaensis
• † Sellardsicrinus – tentative report
• † Semipetasus – type locality for genus
  • † Semipetasus signatus – type locality for species
• † Septimyalina
  • † Septimyalina burmai
  • † Septimyalina perattenuata
• † Septopora
  • † Septopora biserialis – or unidentified comparable form
  • † Septopora blanda – or unidentified comparable form
  • † Septopora cestriensis – or unidentified comparable form
  • † Septopora flabellata – or unidentified comparable form
  • † Septopora lineata – or unidentified related form
  • † Septopora orientalis
  • † Septopora pinnata – or unidentified related form
  • † Septopora quasiorientalis – or unidentified comparable form
  • † Septopora robusta – or unidentified related form
  • † Septopora spinulosa – or unidentified related form
• Serpula – tentative report
• † Sestropoma
  • † Sestropoma cribriferum

• 

  Fossilized skeleton of the Permian primitive four-limbed animal Seymouria

  † Seymouria – type locality for genus
  • † Seymouria baylorensis – type locality for species
• † Shamovella
• † Shansiella
  • † Shansiella beckwithana
  • † Shansiella carbonaria
• † Shouchangoceras
  • † Shouchangoceras americanum – type locality for species
• † Shumardella
  • † Shumardella obsolescens
• † Shumardites
  • † Shumardites cuyleri – type locality for species
  • † Shumardites simondsi
• † Shwedagonia
  • † Shwedagonia elegans – type locality for species

• 

  Fossilized stump of the Carboniferous-Permian club moss relative Sigillaria

  † Sigillaria
  • † Sigillaria brardii
• † Sigillariostrobus
  • † Sigillariostrobus hastatus
• † Simplicarina
  • † Simplicarina incompta
• † Sinuella – type locality for genus
  • † Sinuella minuta – type locality for species
• † Sinuopea
  • † Sinuopea humerosa
  • † Sinuopea vera
• † Siphonosia
  • † Siphonosia alleni
• † Skinnerella
  • † Skinnerella biconica – type locality for species
  • † Skinnerella brevis – type locality for species
  • † Skinnerella cylindrica – type locality for species
  • † Skinnerella diabloensis
  • † Skinnerella formosa – type locality for species
  • † Skinnerella magna – type locality for species
  • † Skinnerella robusta – type locality for species
  • † Skinnerella schucherti
  • † Skinnerella speciosa – type locality for species
  • † Skinnerella tenuis – type locality for species
• † Skinnerina
  • † Skinnerina fusiformis – type locality for species
  • † Skinnerina mildredae – type locality for species
  • † Skinnerina rotundata – type locality for species
• † Slaugenhopia – type locality for genus
  • † Slaugenhopia texensis – type locality for species
• † Soleachiton – type locality for genus
  • † Soleachiton yochelsoni – type locality for species

• 

  Modern specimen of the marine bivalve Solemya

  Solemya – tentative report
• † Soleniscus
  • † Soleniscus diminutus – type locality for species
  • † Soleniscus girtyi – type locality for species
  • † Soleniscus primigenius
  • † Soleniscus primogenius
  • † Soleniscus regularis
  • † Soleniscus texanus – type locality for species
  • † Soleniscus typicus
  • † Soleniscus variabilis
• † Solenochilus
  • † Solenochilus kempae – type locality for species
• † Solenopora
  • † Solenopora texana
• † Sollasia
  • † Sollasia ostiolata
• † Sollasiella – type locality for genus
  • † Sollasiella reticulata – type locality for species
• † Sowburia
  • † Sowburia texana – type locality for species
• † Spermatodus
  • † Spermatodus pustulosus

• 

  Life restoration of the Late Devonian-Permian Sphenacanthus

  † Sphenacanthus
• † Sphenophyllum
  • † Sphenophyllum oblongifolium
  • † Sphenophyllum obovatum
• † Sphenopteris
  • † Sphenopteris macilenta – or unidentified comparable form
• † Spica
  • † Spica texana – type locality for species
• † Spinarella
  • † Spinarella costellata
  • † Spinarella lobata
  • † Spinarella paulula
  • † Spinarella perfecta
• † Spinifrons
  • † Spinifrons delicatula
  • † Spinifrons magna
  • † Spinifrons quadrata
• † Spinofenestella
  • † Spinofenestella spinulosa – or unidentified related form
• † Spinomarginifera – or unidentified comparable form

• 

  Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer

  † Spirifer
  • † Spirifer chappelensis – type locality for species
  • † Spirifer gregeri – or unidentified comparable form
  • † Spirifer guadalupensis – type locality for species
  • † Spirifer rockymontanus
• † Spiriferella
  • † Spiriferella calcarata
  • † Spiriferella clypeata
  • † Spiriferella embrithes
  • † Spiriferella gloverae
  • † Spiriferella gravis – type locality for species
  • † Spiriferella levis – type locality for species
  • † Spiriferella propria
  • † Spiriferella sulcifer – type locality for species
• † Spiriferellina
  • † Spiriferellina hilli – type locality for species
  • † Spiriferellina nasuta
  • † Spiriferellina nuda
  • † Spiriferellina paucicostata – type locality for species
  • † Spiriferellina tricosa – type locality for species
  • † Spiriferellina vescula
• † Spiriferinaella
  • † Spiriferinaella limata
  • † Spiriferinaella medialis
  • † Spiriferinaella scalpata – type locality for species

• 

  Modern shells of the polychaete worm Spirorbis

  Spirorbis
  • † Spirorbis carbonarius – or unidentified comparable form
• † Spiroscala – type locality for genus
  • † Spiroscala pagoda – type locality for species
  • † Spiroscala pulchra – type locality for species
• † Spuriosa
  • † Spuriosa circularis
• † Spyridiophora
  • † Spyridiophora compacta
  • † Spyridiophora distincta – type locality for species
  • † Spyridiophora reticulata – type locality for species
• † Stacheoceras
  • † Stacheoceras gilliamense – type locality for species
• † Staffella
  • † Staffella lacunosa
• † Stearoceras
  • † Stearoceras conchiferum
  • † Stearoceras gibbosum – or unidentified related form
  • † Stearoceras militarium – type locality for species
  • † Stearoceras simplex – type locality for species
• † Stegochiton – type locality for genus
  • † Stegochiton coxi – type locality for species
  • † Stegochiton onerosus – type locality for species
• † Stegocoelia
  • † Stegocoelia copei
  • † Stegocoelia crenulata
  • † Stegocoelia dozierensis – type locality for species
  • † Stegocoelia missouriensis
• † Stellarocrinus
  • † Stellarocrinus texani – type locality for species
• † Stenocoelia
• † Stenodiscus – tentative report
• † Stenoglaphyrites
  • † Stenoglaphyrites incisus
• † Stenolobulites
  • † Stenolobulites admiralensis – type locality for species
  • † Stenolobulites depressus – type locality for species
  • † Stenolobulites stenolobulus – type locality for species
  • † Stenolobulites subglobosus – type locality for species
  • † Stenolobulites type locality for species – informal
• † Stenopoceras
  • † Stenopoceras inexpectans – type locality for species
  • † Stenopoceras whitei – type locality for species
• † Stenopora
  • † Stenopora granulosa – type locality for species
  • † Stenopora richardsoni
• † Stenopronorites
• † Stenoscisma
  • † Stenoscisma abbreviatum
  • † Stenoscisma aberrans
  • † Stenoscisma amoenum
  • † Stenoscisma aptatum
  • † Stenoscisma bellatulum
  • † Stenoscisma bonum
  • † Stenoscisma calvatum
  • † Stenoscisma camurum
  • † Stenoscisma doricranum
  • † Stenoscisma exutum
  • † Stenoscisma fabarium
  • † Stenoscisma hadrum – type locality for species
  • † Stenoscisma hueconianum – type locality for species
  • † Stenoscisma inaequale – type locality for species
  • † Stenoscisma indentata
  • † Stenoscisma kalum
  • † Stenoscisma levicostum
  • † Stenoscisma maniculum
  • † Stenoscisma multicostum
  • † Stenoscisma myioides
  • † Stenoscisma oblisum
  • † Stenoscisma pansum
  • † Stenoscisma peneleve
  • † Stenoscisma problematicum
  • † Stenoscisma pyraustoides – type locality for species
  • † Stenoscisma renode – type locality for species
  • † Stenoscisma repigratum
  • † Stenoscisma schlotheimi – tentative report
  • † Stenoscisma thevenini
  • † Stenoscisma trabeatum
  • † Stenoscisma triquetrum
  • † Stenoscisma venustum
• † Stephanozyga
  • † Stephanozyga subnodosa

• 

  Restorative portrait of the Permian synapsid (mammal precursor) Steppesaurus

  † Steppesaurus – type locality for genus
  • † Steppesaurus gurleyi – type locality for species
• † Stereodictyum – type locality for genus
  • † Stereodictyum orthoplectum – type locality for species
• † Stereophallodon – type locality for genus
  • † Stereophallodon ciscoensis – type locality for species
• † Stereostylus
  • † Stereostylus adelus – type locality for species
• † Stethacanthulus
  • † Stethacanthulus decorus
  • † Stethacanthulus meccaensis

• 

  Life restorations of a male (foreground) and female (background) of the Late Devonian-Carboniferous Chimaera relative Stethacanthus

  † Stethacanthus
  • † Stethacanthus meccaensis
• † Stewartina
  • † Stewartina convexa
  • † Stewartina texana
• † Stioderma – type locality for genus
  • † Stioderma coscinum – type locality for species
• † Straparollus
  • † Straparollus savagei
• † Stratispongia – type locality for genus
  • † Stratispongia cinctuta
• † Streblochondria
  • † Streblochondria sculptilis
• † Streblopteria
  • † Streblopteria montpelierensis
• † Streblotrypa
• † Strepsodiscus
  • † Strepsodiscus paucivoluta
• † Streptacis
  • † Streptacis inflata – type locality for species
  • † Streptacis permiana – type locality for species
  • † Streptacis piercei – type locality for species
  • † Streptacis type locality for species – informal
  • † Streptacis whitfieldi
• † Streptelasma
  • † Streptelasma divaricans
• † Streptorhynchus – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Streptorhynchus shumardianus – tentative report
• † Striatites
  • † Striatites richteri
• † Striatosaccites
  • † Striatosaccites bullaeformis – type locality for species
  • † Striatosaccites perisporites – type locality for species
  • † Striatosaccites Type A – informal
• † Strigigenalis
• † Strigirhynchia
  • † Strigirhynchia elongata
  • † Strigirhynchia indentata – type locality for species
  • † Strigirhynchia transversa
• † Strigogoniatites
  • † Strigogoniatites fountaini – type locality for species
• † Strobeus
  • † Strobeus brevis
  • † Strobeus delawarensis – type locality for species
  • † Strobeus paludinaeformis
  • † Strobeus poromus
• † Stromatidium – type locality for genus
  • † Stromatidium typicale – type locality for species
• † Strophalosia
• † Strophella
  • † Strophella grandaevus

• 

  Fossilized shell of the Ordovician-Silurian brachiopod Strophomena

  † Strophomena
  • † Strophomena neglecta
• † Stuartwellercrinus
  • † Stuartwellercrinus symmetricus – type locality for species
  • † Stuartwellercrinus texanus – type locality for species
  • † Stuartwellercrinus turbinatus – type locality for species
• † Stutchburia
• † Subkargalites
  • † Subkargalites hargisi – type locality for species
  • † Subkargalites parkeri
• † Subperrinites
  • † Subperrinites bakeri – type locality for species
  • † Subperrinites denhami – type locality for species
  • † Subperrinites mooreae – type locality for species
• † Sulcataria
  • † Sulcataria compacta
  • † Sulcataria latisulcata
• † Svetlanoceras
  • † Svetlanoceras moylei – type locality for species
• † Symphysurina
• † Syngastrioceras
  • † Syngastrioceras globulosum
  • † Syngastrioceras scotti
• † Synocladia
• † Syntrophina
• † Syntrophinella
• † Syringoclemis – tentative report

• 

  Fossil of the Devonian tabulate coral Syringopora

  † Syringopora – tentative report

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Contents

• A
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• C
• D
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• F
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• I
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• † Tabulipora
  • † Tabulipora carbonaria
• † Taenicephalus
• † Taeniopteris
  • † Taeniopteris abnormis
  • † Taeniopteris coriacea – tentative report
  • † Taeniopteris eckardtii
  • † Taeniopteris multinervis
• † Taeniopters
• † Tainoceras
  • † Tainoceras clydense – type locality for species
• † Taphrosestria
  • † Taphrosestria expansa
  • † Taphrosestria peculiaris
• † Tapinotomaria
  • † Tapinotomaria coronata – type locality for species
  • † Tapinotomaria costata – type locality for species
  • † Tapinotomaria crassa – type locality for species
  • † Tapinotomaria duplicostata – type locality for species
  • † Tapinotomaria globosa – type locality for species
  • † Tapinotomaria mirabilis – type locality for species
  • † Tapinotomaria pyramidalis – type locality for species
  • † Tapinotomaria rugosa – type locality for species
  • † Tapinotomaria submirabilis – type locality for species
• † Tappenosaurus – type locality for genus
  • † Tappenosaurus magnus – type locality for species
• † Tarphyceras
  • † Tarphyceras chadwickense
• † Tarthinia
• † Tautosia
  • † Tautosia angulata
  • † Tautosia distorta
  • † Tautosia elegans
  • † Tautosia expansa
  • † Tautosia fastigiata
  • † Tautosia galbina
  • † Tautosia lenumbona
  • † Tautosia magnisepta
  • † Tautosia podistra – type locality for species
  • † Tautosia pulchra
  • † Tautosia shumardiana
  • † Tautosia transenna – type locality for species
• † Teguliferina
  • † Teguliferina armata
  • † Teguliferina boesei – type locality for species
  • † Teguliferina compacta – type locality for species
  • † Teguliferina solidispinosa
• † Teiichispira
  • † Teiichispira nanus – type locality for species
• † Temnocheilus
• † Terebratula – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Terebratula perinflata – type locality for species
• † Terebratuloidea
  • † Terebratuloidea triplicata
• † Tersomius – type locality for genus
  • † Tersomius texensis – type locality for species
• † Tesnusocaris – type locality for genus
  • † Tesnusocaris goldichi – type locality for species

• 

  Fossilized skull in multiple views of the Permian synapsid (mammal precursor) Tetraceratops

  † Tetraceratops – type locality for genus
  • † Tetraceratops insignis – type locality for species
• † Tetralobula
• † Tetrataxis
• † Tetravirga
• † Texarina
  • † Texarina elongata – type locality for species
  • † Texarina oblongata
  • † Texarina parallela
  • † Texarina paucula
  • † Texarina solida
  • † Texarina wordensis – type locality for species
• † Texasodus – type locality for genus
  • † Texasodus varidentatus – type locality for species
• † Texoceras
  • † Texoceras texanum – type locality for species
• † Thaerodonta
  • † Thaerodonta recedens – or unidentified comparable form
• † Thalattocanthus
  • † Thalattocanthus consonus
• † Thamniscus
  • † Thamniscus digitatus – type locality for species
• † Thamnosia
  • † Thamnosia anterospinosa
  • † Thamnosia arctica
  • † Thamnosia capitanensis
  • † Thamnosia parvispinosa
  • † Thamnosia phragmophora
  • † Thamnosia silicica
• † Thedusia – type locality for genus
  • † Thedusia angustata
  • † Thedusia biconvexa
  • † Thedusia bucrenata
  • † Thedusia dischides
  • † Thedusia discissa
  • † Thedusia emarginata
  • † Thedusia magna
  • † Thedusia mesocostata
  • † Thedusia paucicostata
  • † Thedusia procera – type locality for species
  • † Thedusia trigonalis
  • † Thedusia ventricosa
• † Thigriffides
  • † Thigriffides roundyi
• † Thuroholia
  • † Thuroholia cribriformis
• † Timaniella
  • † Timaniella pseudocamerata
• † Timanodictya – tentative report
• † Timorina
  • † Timorina attenuata
  • † Timorina ovata
  • † Timorina schuchertensis – type locality for species
• † Timorites
  • † Timorites schucherti – or unidentified comparable form
  • † Timorites uddeni – type locality for species
• † Tingia
• † Tinsleya – type locality for genus
  • † Tinsleya texana – type locality for species
• † Tomicosaurus – report made of unidentified related form or using admittedly obsolete nomenclature
• † Toomeyospongia – type locality for genus
  • † Toomeyospongia apachensis – type locality for species
  • † Toomeyospongia gigantia – type locality for species
  • † Toomeyospongia modica – type locality for species
• † Toomeyospongiella – type locality for genus
  • † Toomeyospongiella minuta – type locality for species
• † Tornquistia – tentative report
  • † Tornquistia transversalis – type locality for species
• † Torynechus
  • † Torynechus alectorius
  • † Torynechus caelatus – type locality for species
• † Tostonia
• † Trabeculites – type locality for genus
  • † Trabeculites keithae – type locality for species
• † Trachydomia
  • † Trachydomia turbonitella – type locality for species
• † Trailospongia – type locality for genus
  • † Trailospongia reischi – type locality for species
• † Transennatia
  • † Transennatia gratiosa
• † Trepospira
  • † Trepospira depressa
  • † Trepospira discoidalis
  • † Trepospira illinoisensis
  • † Trepospira sphaerulata
• † Trepsipleura – type locality for genus
  • † Trepsipleura chordanodosa – type locality for species
  • † Trepsipleura nodosa – type locality for species
• † Trichasaurus – type locality for genus
  • † Trichasaurus texensis – type locality for species
• † Tricoria
  • † Tricoria hirpex
• † Tricrepicephalus
  • † Tricrepicephalus coria
  • † Tricrepicephalus texanus
• † Trigonoglossa
  • † Trigonoglossa nebrascensis
• † Trigonoproductus
  • † Trigonoproductus inexpectans

• 

  Fossilized skull of the Permian amphibian Trimerorhachis

  † Trimerorhachis
  • † Trimerorhachis greggi – type locality for species
  • † Trimerorhachis insignis – type locality for species
  • † Trimerorhachis mesops – type locality for species
  • † Trimerorhachis rogersi – type locality for species
• † Triproetus
  • † Triproetus altasulcus – type locality for species
  • † Triproetus angustus – type locality for species
  • † Triproetus tumidus – type locality for species
• † Tristratocoelia
  • † Tristratocoelia rhythmica
• † Triticites
  • † Triticites cellamagnus – or unidentified comparable form
• † Trochilioceras – type locality for genus
  • † Trochilioceras tenuosum – type locality for species

• 

  Shell in multiple views of a Trochus top sea snail

  Trochus – report made of unidentified related form or using admittedly obsolete nomenclature
• † Trophisina
  • † Trophisina fenaria
• † Tropidelasma
  • † Tropidelasma anthicum – type locality for species
  • † Tropidelasma corniculum
  • † Tropidelasma costellatum – type locality for species
  • † Tropidelasma culmenatum
  • † Tropidelasma furcillatum
  • † Tropidelasma gregarium – type locality for species
  • † Tropidelasma perattenuatum – type locality for species
  • † Tropidelasma pygmaeum – type locality for species
  • † Tropidelasma rhamphodes – type locality for species
  • † Tropidelasma robertsi
  • † Tropidelasma strobilum – type locality for species
  • † Tropidelasma undulatum – type locality for species
• Trypetesa
  • † Trypetesa caveata
• † Tschernyschewia
  • † Tschernyschewia americana
• † Tuberitina
• † Tumulites
  • † Tumulites varians – or unidentified comparable form
• † Tunstallia – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Tunstallia helicina – tentative report
• Turbo – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Turbo guadalupensis – type locality for species
  • † Turbo texanus – type locality for species
• † Turgidiffia – type locality for genus
  • † Turgidiffia columellata – type locality for species
  • † Turgidiffia completa – type locality for species
  • † Turgidiffia composita – type locality for species
• † Tylothyris
  • † Tylothyris brevaurita – type locality for species
  • † Tylothyris missouriensis – or unidentified comparable form

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• † Uddenites – type locality for genus
  • † Uddenites harlani – type locality for species
  • † Uddenites oweni – type locality for species
  • † Uddenites schucherti – type locality for species
  • † Uddenites serratus – type locality for species
• † Uddenoceras
  • † Uddenoceras oweni
• † Ullmannia
• † Ulocrinus
• † Ulrichotrypa – tentative report
• † Uncinuloides
  • † Uncinuloides guadalupensis
• † Undellaria
  • † Undellaria magnifica
• † Undulella
  • † Undulella guadalupensis
  • † Undulella matutina
  • † Undulella undulata – type locality for species

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• 

  Mounted fossilized skeleton of the Permian synapsid (mammal precursor) Varanops

  † Varanops
  • † Varanops brevirostris – type locality for species
• † Varanosaurus – type locality for genus
  • † Varanosaurus acutirostris – type locality for species
  • † Varanosaurus wichitaensis – type locality for species
• † Varialepis – report made of unidentified related form or using admittedly obsolete nomenclature
• † Vesicaspora
  • † Vesicaspora schaubergeri

• 

  Restoration of the Permian trilobite Vidria

  † Vidria
  • † Vidria vespa
• † Vidrioceras
  • † Vidrioceras irregulare – type locality for species
  • † Vidrioceras uddeni – type locality for species
• † Virgola
  • † Virgola neptunia
  • † Virgola rigida
• † Voiseyella
  • † Voiseyella texana – type locality for species
• † Vorticina
  • † Vorticina keytei – type locality for species

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Contents

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• G
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• I
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• † Waagenella
  • † Waagenella crassus
  • † Waagenella lineatus – type locality for species
  • † Waagenella plummeri – type locality for species
• † Waagenina
  • † Waagenina rothi – type locality for species
• † Waagenoceras
  • † Waagenoceras dieneri
• † Waagenoconcha
  • † Waagenoconcha convexa
  • † Waagenoconcha leonardensis – type locality for species
  • † Waagenoconcha magnifica – type locality for species
  • † Waagenoconcha platys
  • † Waagenoconcha prophetica
  • † Waagenoconcha sulcata
• † Waggoneria – type locality for genus
  • † Waggoneria knoxensis – type locality for species

• 

  Fossilized foliage of the Carboniferous-Permian conifer Walchia

  † Walchia
  • † Walchia piniformis
  • † Walchia schlotheimii
  • † Walchia schneideri
• † Walchiostrobus
• † Walliserodus
• † Warthia
  • † Warthia americana – type locality for species
  • † Warthia angustior – type locality for species
  • † Warthia crassus – type locality for species
  • † Warthia fissus – type locality for species
  • † Warthia saundersi – type locality for species
  • † Warthia waageni – type locality for species
  • † Warthia welleri
• † Wattia – type locality for genus
  • † Wattia texana – type locality for species
• † Wellerella
  • † Wellerella bidentata
  • † Wellerella girtyi – type locality for species
  • † Wellerella nitidula
  • † Wellerella osagensis
• † Wellerites – type locality for genus
  • † Wellerites mohri – type locality for species
• † Whitspakia
  • † Whitspakia schucherti
• † Wiedeyoceras
  • † Wiedeyoceras pingue
• † Wilbernicyathus
  • † Wilbernicyathus donegani
• † Wilkingia
  • † Wilkingia dubium – or unidentified comparable form
  • † Wilkingia rothi
  • † Wilkingia terminale
• † Woosteroceras
  • † Woosteroceras cherokeense
  • † Woosteroceras flexiseptatum – type locality for species
  • † Woosteroceras percurvatum – type locality for species
  • † Woosteroceras spirale – type locality for species
• † Worthenia
  • † Worthenia alticarinata – type locality for species
  • † Worthenia arizonensis
  • † Worthenia bialveozona
  • † Worthenia bicarinata – type locality for species
  • † Worthenia corrugata
  • † Worthenia crenulata
  • † Worthenia kingi – type locality for species
  • † Worthenia latialveozona
  • † Worthenia pilula – type locality for species
  • † Worthenia planalveozona
  • † Worthenia speciosa
  • † Worthenia tabulata
  • † Worthenia whitehorsensis – type locality for species
• † Wortheniopsis
• † Wurmiella
  • † Wurmiella excavata

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• 

  Restoration of the Late Devonian–Triassic freshwater shark Xenacanthus

  † Xenacanthus
  • † Xenacanthus platypternus
  • † Xenacanthus texensis
• † Xenechinus – type locality for genus
  • † Xenechinus parvus – type locality for species
• † Xenelasma
  • † Xenelasma synthrophioides
• † Xenosaria
  • † Xenosaria exotica
• † Xenosteges – type locality for genus
  • † Xenosteges adherens – type locality for species
  • † Xenosteges anomalus
  • † Xenosteges magnus
  • † Xenosteges quadratus – type locality for species
  • † Xenosteges trivialis
  • † Xenosteges umbonatus
• † Xestosia – type locality for genus
  • † Xestosia obsolescens
  • † Xestosia schucherti – type locality for species
• † Xinjiangospira
  • † Xinjiangospira type locality for species – informal

• 

  Illustration of a fossil of the Carboniferous millipede Xyloiulus

  † Xyloiulus – tentative report

Y

Contents

• A
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• I
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• † Yakovlevia
  • † Yakovlevia anterospinosa
  • † Yakovlevia costellata
  • † Yakovlevia hessorum
  • † Yakovlevia immatura
  • † Yakovlevia indentata
  • † Yakovlevia intermedia
  • † Yakovlevia multistriata
  • † Yakovlevia sulcata
• † Yochelsonellisa
  • † Yochelsonellisa eximia
• Yoldia – tentative report
  • † Yoldia subscitula
• † Yunnania

Z

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
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• Z

• † Zaphrenthis
  • † Zaphrenthis gibsoni

• 

  Life restoration of the Permian amphibian Zatrachys

  † Zatrachys
  • † Zatrachys conchigerus – type locality for species
  • † Zatrachys serratus
• † Zeilleropteris
  • † Zeilleropteris wattii – type locality for species
• † Zhonglupuceras
  • † Zhonglupuceras mapesi
• † Zygopleura
  • † Zygopleura swalloviana – type locality for species
• † Zygospira
  • † Zygospira resupinata

References

1. Alexander O. Ivanov; Merlynd K. Nestell; Galina P. Nestell; Gorden L. Bell Jr. (2019). "New fish assemblages from the Middle Permian from the Guadalupe Mountains, West Texas, USA". Palaeoworld. 29 (2): 239–256. doi:10.1016/j.palwor.2018.10.003. S2CID   134496257.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 7 August 2017.