List of the Mesozoic life of Texas

Last updated September 19, 2024

This list of the Mesozoic 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 252.17 and 66 million years of age.

A

Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Acanthoceras
† Acanthoceras
- † Acanthoceras adkinsi
- † Acanthoceras amphibolum
- † Acanthoceras barcusi
- † Acanthoceras eulessanum
- † Acanthoceras johnsonanum
- † Acanthoceras tarrantense
  - † Acanthoceras tarrantense nitidum
- † Acanthoceras wintoni
- † Acanthoceras worthense
Acesta
- † Acesta sayeri
- † Acesta sayrei
Acila
- † Acila chicotana
Acirsa
- † Acirsa flexicostata – tentative report
Acmaea
- † Acmaea occidentalis
- † Acmaea pilleolus
† Acompsoceras
Life restoration of the Early Cretaceous theropod dinosaur Acrocanthosaurus
† Acrocanthosaurus
- † Acrocanthosaurus atokensis
† Acrosmilia
Acteon
- † Acteon nitidus – tentative report
- † Acteon throckmortoni
† Acteonella
- † Acteonella delgadoi
- † Acteonella pecosensis
- † Acteonella sublaevis – or unidentified comparable form
† Actinacis
- † Actinacis valverdensis – type locality for species
† Actinastrea
- † Actinastrea guadalupae
† Actinostreon
- † Actinostreon gregareum
† Acutostrea
- † Acutostrea plumosa
Life restoration of the Late Triassic synapsid (mammal precursor) Adelobasileus
† Adelobasileus – type locality for genus
- † Adelobasileus cromptoni – type locality for species
† Adinodon
- † Adinodon pattersoni – type locality for species
† Adkinsella – type locality for genus
- † Adkinsella edwardsensis – type locality for species
† Adkinsia
- † Adkinsia bosquensis – type locality for species
- † Adkinsia knikerae – type locality for species
† Adocus
† Aenona
- † Aenona eufaulensis
† Aetodactylus – type locality for genus
- † Aetodactylus halli – type locality for species
† Agerostrea
- † Agerostrea mesenterica
† Aguileria
- † Aguileria cumminsi
† Agujaceratops
- † Agujaceratops mariscalensis – type locality for species
† Akera
- † Akera constricta
Alamosaurus
† Alamosaurus
- † Alamosaurus sanjuanensis
† Albanerpeton
- † Albanerpeton arthridion – type locality for species
- † Albanerpeton gracilis
- † Albanerpeton nexuosus
† Aliofusus
- † Aliofusus balaniformis
- † Aliofusus reagani
- † Aliofusus reagani subtilis
- † Aliofusus reagani tumidus
† Aliomactra
- † Aliomactra compressa
† Alkaidia – type locality for genus
- † Alkaidia sumralli – type locality for species
† Allocrioceras
- † Allocrioceras annulatum
- † Allocrioceras dentonense
- † Allocrioceras larvatum
Alnus
- † Alnus trina
Restorative model of the Late Cretaceous mammal Alphadon
† Alphadon
- † Alphadon halleyi – or unidentified comparable form
- † Alphadon perexiguus – type locality for species
† Altairia – type locality for genus
- † Altairia wintoni
† Amaurellina
- † Amaurellina stephensoni
† Ambigostrea
- † Ambigostrea tecticosta
† Ambrosea
- † Ambrosea nitida
Ammobaculites
- † Ammobaculites subcretaceous
- † Ammobaculites subcretaceus
Fossilized shell of the Jurassic-Miocene sea snail Ampullina
† Ampullina – or unidentified comparable form
- † Ampullina abnormalis
- † Ampullina densatus
- † Ampullina lirata
Amuletum
- † Amuletum boylei
- † Amuletum curvocostatum
- † Amuletum venustum
Amusium
- † Amusium danei – tentative report
† Anacolosidites
† Anaklinoceras
- † Anaklinoceras reflexum
† Anatimya
- † Anatimya anteradiata
- † Anatimya anteradiata texana
- † Anatimya eulessana
- † Anatimya longula
† Anchura
- † Anchura bexarensis
- † Anchura caddoensis
- † Anchura campbelli
- † Anchura elegans
- † Anchura hoggi
- † Anchura lamari
- † Anchura modesta
- † Anchura noackensis
- † Anchura noakensis – tentative report
- † Anchura substriata
- † Anchura turricula
- † Anchura whitneyensis
† Ancilla
- † Ancilla acutula
† Angistorhinus
- † Angistorhinus alticephalus – type locality for species
- † Angistorhinus grandis
Reconstructive illustration of a fossilized skull of the Late Cretaceous duck-billed dinosaur Angulomastacator
† Angulomastacator – type locality for genus
- † Angulomastacator daviesi – type locality for species
† Anisoceras
- † Anisoceras armatum
- † Anisoceras perarmatum
† Anisomyon
- † Anisomyon borealis – tentative report
- † Anisomyon haydeni
† Anomalina
- † Anomalina petita
- † Anomalina torcerensis
† Anomalofusus
- † Anomalofusus bellulus
- † Anomalofusus lemniscatus
Anomia
- † Anomia argentaria
- † Anomia mexicana
- † Anomia ornata
- † Anomia ponticulana
- † Anomia tellinoides
† Anomoeodus
† Anomotodon
- † Anomotodon toddi – type locality for species
† Antillocaprina
† Apachesaurus
- † Apachesaurus gregorii
† Aphrodina
- † Aphrodina navarroana
- † Aphrodina tippana
Aplousina
† Apsgnathus – type locality for genus
- † Apsgnathus triptodon – type locality for species
† Aquilarhinus – type locality for genus^[1]
- † Aquilarhinus palimentus – type locality for species^[1]
Arca
- † Arca martindalensis
- † Arca pergracilis
- † Arca rostellata
- † Arca securiculata
Architectonica
- † Architectonica voragiformis
Arcopsis
- † Arcopsis nolani
† Arctostrea
- † Arctostrea falacata
† Areopsammia – type locality for genus
- † Areopsammia bakerae – type locality for species
Restoration of the Late Triassic lungfish Arganodus with an anachronistic human to scale
† Arganodus
- † Arganodus dorotheae – type locality for species
Arrhoges
- † Arrhoges cibolensis
- † Arrhoges ciboloensis
- † Arrhoges lobata media
- † Arrhoges plenocosta
† Asciocythere
- † Asciocythere rotunda
† Aspidoceras
- † Aspidoceras laevigatum
† Astacodes
- † Astacodes davisi
- † Astacodes maxwelli
† Astandes
Astarte
- † Astarte culebrensis
- † Astarte malonensis
† Astartemya
- † Astartemya fentressensis
Electron micrograph and gross view of an Astrangia stony coral
Astrangia
- † Astrangia cretacea
- † Astrangia lamarensis – type locality for species
Astreopora – tentative report
- † Astreopora leightoni – type locality for species
† Astrocoenia
- † Astrocoenia budaensis – type locality for species
- † Astrocoenia nidiformis
- † Astrocoenia scyphoidea – type locality for species
† Astroconodon – type locality for genus
- † Astroconodon denisoni – type locality for species
† Astrocratis – type locality for genus
- † Astrocratis acutispina – type locality for species
Life restoration of the Early Cretaceous long-necked dinosaur Astrodon
† Astrodon
- † Astrodon johnstoni
† Astrophocaudia – type locality for genus
- † Astrophocaudia slaughteri – type locality for species
† Atreta
- † Atreta minor
† Aulastraeopora – type locality for genus
- † Aulastraeopora harrisi – type locality for species
† Axonoceras
- † Axonoceras compressum
- † Axonoceras multicostatum
- † Axonoceras multicostatum rotundum
- † Axonoceras pingue
† Axosmilia
- † Axosmilia craginiana – type locality for species
- † Axosmilia whitneyi – type locality for species

B

Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites
† Baculites
- † Baculites aquilaensis - or unidentified loosely related form
- † Baculites claviformis
- † Baculites haresi – or unidentified comparable form
- † Baculites ovatus
- † Baculites scotti
- † Baculites taylorensis
- † Baculites tippahensis
- † Baculites undatus
† Baena – report made of unidentified related form or using admittedly obsolete nomenclature
† Banis
- † Banis siniformis
Barbatia – tentative report
- † Barbatia carolinensis
† Barroisiceras
Mounted fossilized skeleton of the Cretaceous turtle Basilemys
† Basilemys
† Bathycyathus – tentative report
- † Bathycyathus lloydi – type locality for species
† Bathytormus
- † Bathytormus pteropsis
† Belemnitella
- † Belemnitella americana
† Bellifusus
- † Bellifusus angulicostatus – or unidentified related form
- † Bellifusus buffaloensis
- † Bellifusus coronatus
- † Bellifusus crassicostatus
- † Bellifusus deatsvillensis
- † Bellifusus multicostatus
- † Bellifusus robustus
- † Bellifusus tennistriatus
† Belliscala
- † Belliscala crideri
- † Belliscala forbeyi
- † Belliscala rockensis
† Belodon
- † Belodon superciliosus – type locality for species
Fossilized skeleton of the Late Cretaceous bony fish Belonostomus
† Belonostomus
† Beretra
- † Beretra contracta
- † Beretra elongata
- † Beretra firma
- † Beretra ornatula
- † Beretra ripleyana
- † Beretra striata
Life restoration of the Early Cretaceous crocodilian relative Bernissartia
† Bernissartia – tentative report
† Betelgeusia – type locality for genus
- † Betelgeusia reidi – type locality for species
† Borissiakoceras
- † Borissiakoceras orbiculatum
† Bostrychoceras
- † Bostrychoceras polyplocum
Botula
- † Botula carolinensis
- † Botula conchafodentis
- † Botula plumosa
Life restoration of the Late Cretaceous plesiosaur Brachauchenius hunting a hesperornithiform bird
† Brachauchenius
- † Brachauchenius lucasi
Brachidontes
- † Brachidontes arlingtonanus
- † Brachidontes filisculptus
- † Brachidontes filisculptus microcostae
- † Brachidontes fulpensis
Brachiodontes
† Brachychampsa
† Brachycythere – tentative report
- † Brachycythere subconcentrica
† Brachyrhizodus – type locality for genus
- † Brachyrhizodus wichitaensis – type locality for species
† Brachysuchus – type locality for genus
- † Brachysuchus megalodon – type locality for species
Life restoration of the Late Cretaceous horned dinosaur Bravoceratops
† Bravoceratops – type locality for genus
- † Bravoceratops polyphemus – type locality for species
† Breviarca
- † Breviarca grandis
- † Breviarca habita
- † Breviarca minor
- † Breviarca nolani
- † Breviarca plummeri
† Brontopodus – type locality for genus
- † Brontopodus birdi – type locality for species
† Buccinopsis
- † Buccinopsis crassa
- † Buccinopsis crassicostata
- † Buccinopsis crassus
- † Buccinopsis globosa
- † Buccinopsis greenensis
- † Buccinopsis perryi
- † Buccinopsis solida
† Budaia – type locality for genus
- † Budaia travisensis – type locality for species
† Budaiceras
- † Budaiceras alticarinatum
- † Budaiceras elegantior
- † Budaiceras hyatti
† Burckhardtites
- † Burckhardtites palmensis
Busycon – tentative report

C

Cadulus
- † Cadulus coonensis
- † Cadulus obnutus
- † Cadulus praetenuis
Caestocorbula
- † Caestocorbula crassaplica
- † Caestocorbula crassiplica
- † Caestocorbula suffalciata
- † Caestocorbula terramaria
- † Caestocorbula torta
- † Caestocorbula williardi
Callianassa
† Calliomphalus
- † Calliomphalus americanus
- † Calliomphalus bellulus
- † Calliomphalus microcancelli
Callistina
- † Callistina alta
- † Callistina lamarensis
- † Callistina munda
- † Callistina taffi
† Callodus – type locality for genus
- † Callodus coronatus – type locality for species
Callucina
- † Callucina chatfieldana
- † Callucina oleodorsum
- † Callucina seminalis
† Calyptosuchus – type locality for genus
- † Calyptosuchus wellesi – type locality for species
Three modern shells of Calyptraea , or Chinese hat snails
Calyptraea
† Camptonectes
- † Camptonectes bellisculptus
- † Camptonectes bubonis
- † Camptonectes burlingtonensis
- † Camptonectes cavanus
- † Camptonectes ellsworthensis
- † Camptonectes kaufmanensis
- † Camptonectes martinsensis
Cancellaria
- † Cancellaria matroni – tentative report
† Cantabrigites
- † Cantabrigites spinosum
- † Cantabrigites subsimplex – or unidentified related form
Cantharus – tentative report
† Cantioscyllium
- † Cantioscyllium meyeri – type locality for species
† Capellia – type locality for genus
- † Capellia mauricei – type locality for species
Fossilized shell of the Cretaceous marine bivalve Caprina
† Caprina
- † Caprina coraloidea
- † Caprina douvillei
† Caprinuloidea
- † Caprinuloidea multitubifera
- † Caprinuloidea perfecta
Capulus
- † Capulus cuthandensis
- † Capulus erectus
- † Capulus microstriatus – tentative report
- † Capulus spangleri
A living Carcharias sand tiger shark
Carcharias
- † Carcharias heathi – type locality for species
- † Carcharias holmdelensis
- † Carcharias samhammeri – or unidentified comparable form
† Cardiaster
- † Cardiaster leonensis
Cardium
- † Cardium wadei
† Caririchnium
- † Caririchnium protohadrosaurichnos – type locality for species
Carota
- † Carota biplicata
- † Carota pendula
- † Carota robusta
† Carycorbula
- † Carycorbula martinae
Caryocorbula
- † Caryocorbula ovisana
- † Caryocorbula tradingensis
- † Caryocorbula varia
A living Caryophyllia solitary coral
Caryophyllia
- † Caryophyllia comanchei – type locality for species
- † Caryophyllia dentonensis – type locality for species
- † Caryophyllia konincki – type locality for species
† Caseosaurus – type locality for genus
- † Caseosaurus crosbyensis – type locality for species
† Casierius
- † Casierius heckeli
- † Casierius heckelii
† Catactegenys – type locality for genus
- † Catactegenys solaster – type locality for species
† Catastomocystis
- † Catastomocystis spinosa
Fossilized skeleton of the Permian-Early Cretaceous bony fish Caturus
† Caturus
† Caveola
- † Caveola acuta – tentative report
- † Caveola bellsana
- † Caveola producta
† Cedarosaurus
- † Cedarosaurus weiskopfae
† Cenomanocarcinus
- † Cenomanocarcinus refroae
- † Cenomanocarcinus renfroae
- † Cenomanocarcinus vanstraeleni
Life restoration of the Late Triassic-Eocene lungfish Ceratodus
† Ceratodus
- † Ceratodus americanus – or unidentified comparable form
Ceratotrochus – tentative report
† Ceriopora
Cerithiella
- † Cerithiella nodoliratum – or unidentified related form
- † Cerithiella semirugatum
Cerithium
- † Cerithium simpsonensis
† Chamops
† Champsosaurus
† Chartecytis
† Cheloniceras
- † Cheloniceras adkinsi
- † Cheloniceras cornuelianum
Restoration of the Late Triassic theropod dinosaur Chindesaurus
† Chindesaurus
- † Chindesaurus bryansmalli
† Chinlea
- † Chinlea sorenseni
† Chirostenotes
† Chondrodonta
- † Chondrodonta glabra
- † Chondrodonta munsoni
- † Chondrodonta youngi – type locality for species
† Chupacabrachelys – type locality for genus
- † Chupacabrachelys complexus – type locality for species
Cidaris
- † Cidaris hemigranosus
- † Cidaris texanus
† Cimexomys
† Cimoliasaurus
Life restoration of the Late Cretaceous pterosaur Cimoliopterus (left) stealing fish from another pterosaur
† Cimoliopterus
- † Cimoliopterus dunni – type locality for species
† Cimolodon
- † Cimolodon electus – or unidentified comparable form
† Cimolomys
- † Cimolomys clarki
† Cinulia
- † Cinulia tarrantensis – or unidentified related form
† Cionichthys
- † Cionichthys greeni – type locality for species
† Citharina
- † Citharina kochii
† Cladoceramus
- † Cladoceramus undulatoplicatus
† Cladophyllia
- † Cladophyllia furcifera
† Clavipholas
- † Clavipholas pectorosa
- † Clavipholas whitfieldi
† Clevosaurus – or unidentified comparable form
- † Clevosaurus latidens
Life restoration of the Late Cretaceous mosasaurid Clidastes
† Clidastes
- † Clidastes liodontus
Cliona
- † Cliona microtuberum
- † Cliona retiformis
† Clisocolus
- † Clisocolus concentricum
† Coahomasuchus – type locality for genus
- † Coahomasuchus kahleorum – type locality for species
† Coahuilites – tentative report
† Coalcomana
- † Coalcomana ramosa
† Codiopsis
- † Codiopsis stephensoni – type locality for species
† Coelodus
- † Coelodus decaturensis – type locality for species
- † Coelodus fabadens – type locality for species
Life restoration of the Late Triassic-Early Jurassic theropod dinosaur Coelophysis with an anachronistic human to scale
† Coelophysis
† Coelosmilia
- † Coelosmilia americana
- † Coelosmilia texana
† Coilopoceras
- † Coilopoceras springeri
† Collignoniceras
- † Collignoniceras woollgari
† Colognathus – type locality for genus
- † Colognathus obscurus – type locality for species
† Colombiceras
- † Colombiceras robustum
† Columbiceras
- † Columbiceras robustus
† Comptoniaster
- † Comptoniaster adamsi
† Confusiscala – tentative report
† Coniasaurus
- † Coniasaurus crassidens
† Connectastrea – tentative report
- † Connectastrea infundibuliformis – type locality for species
Conopeum
† Continuoolithus
† Conulus
- † Conulus stephensoni – type locality for species
† Convolosaurus – type locality for genus^[2]
- † Convolosaurus marri – type locality for species^[2]
A living Corbicula basket clam
Corbicula
Corbula
- † Corbula amniculana
- † Corbula dentonensis
- † Corbula inflata
- † Corbula linteroidea
- † Corbula ponsana
- † Corbula pulvinata
- † Corbula rockensis
- † Corbula senecta
- † Corbula starana
- † Corbula subradiata
- † Corbula subradiata texana
- † Corbula torta – or unidentified related form
- † Corbula williardi – tentative report
- † Corbula woodi
† Coskinolinoides
- † Coskinolinoides texanus
† Costellacesta
- † Costellacesta sayrei
† Coupatezia
- † Coupatezia turneri – type locality for species
† Craginia
- † Craginia turriformis
Crassatella
- † Crassatella hodgei
- † Crassatella quinlanensis
- † Crassatella vadosa
- † Crassatella vadosa bexarensis
- † Crassatella vadosa cedarensis
- † Crassatella vadosa chatfieldensis
- † Crassatella vadosa manorensis
Fossilized shell of the Cretaceous-modern oyster Crassostrea
Crassostrea
- † Crassostrea cortex
- † Crassostrea cusseta
- † Crassostrea trigonalis
† Crateraster
- † Crateraster quinqueloba
- † Crateraster texensis
† Crenella
- † Crenella elegantula
- † Crenella serica
- † Crenella subcircularis
† Creonella
- † Creonella deusseni
- † Creonella triplicata
- † Creonella whitei
† Cretacoranina
- † Cretacoranina dichrous
Fossil of the Early Cretaceous-Eocene shark Cretolamna
† Cretolamna
- † Cretolamna appendiculata
- † Cretolamna maroccana
† Cretorectolobus
- † Cretorectolobus olsoni – or unidentified comparable form
† Crosbysaurus – type locality for genus
- † Crosbysaurus harrisae – type locality for species
Ctena
- † Ctena parvilineata
Shell of a Cucullaea , or false ark shell
Cucullaea
- † Cucullaea blanpiedi
- † Cucullaea capax
- † Cucullaea deatvillensis
- † Cucullaea kingsensis
- † Cucullaea murrayi
- † Cucullaea powersi
† Cuna
- † Cuna texana
† Curtocaprina – type locality for genus
- † Curtocaprina clabaughikinsorum – type locality for species
Cuspidaria
- † Cuspidaria alaeformis
- † Cuspidaria ampulla
- † Cuspidaria grandis
- † Cuspidaria grovensis
† Cyathomorpha – tentative report
- † Cyathomorpha damoni – type locality for species
† Cyathophora
- † Cyathophora haysensis – type locality for species
- † Cyathophora olssoni – type locality for species
† Cyclorisma
- † Cyclorisma orbiculata
- † Cyclorisma parva
- † Cyclorisma pumila
† Cyclothyris
- † Cyclothyris americana
Cylichna
- † Cylichna incisa
- † Cylichna secalina
Fossilized shell of the Late Jurassic-Oligocene nautiloid cephalopod Cymatoceras
† Cymatoceras
- † Cymatoceras hilli – or unidentified comparable form
- † Cymatoceras texanum
† Cymbophora
- † Cymbophora appressa
- † Cymbophora berryi
- † Cymbophora cancellosa
- † Cymbophora inflata
- † Cymbophora puteana
- † Cymbophora saccellana
- † Cymbophora scabellum
- † Cymbophora schucherti
- † Cymbophora securis
- † Cymbophora simpsonensis
- † Cymbophora spooneri
- † Cymbophora subtilis
- † Cymbophora wordeni
† Cymella
- † Cymella bella
- † Cymella bella texana
- † Cymella ironensis
† Cypridae
- † Cypridae wyomingensis – or unidentified related form
† Cyprimeria
- † Cyprimeria alta
- † Cyprimeria coonensis
- † Cyprimeria depressa
- † Cyprimeria patella
Cythere
- † Cythere concentrica
† Cythereis
- † Cythereis dentonensis
- † Cythereis hawleyi
- † Cythereis nuda
- † Cythereis ornatissima
- † Cythereis paupera
- † Cythereis pustulosissima
- † Cythereis worthensis
Cytherella
- † Cytherella comanchensis
Cytherelloidea
- † Cytherelloidea reticulata
- † Cytherelloidea williamsoniana
Cytheropteron
- † Cytheropteron rugosalatum
Cyzicus – tentative report
- † Cyzicus shupei

D

Life restoration of the Late Cretaceous primitive mosasaur Dallasaurus
† Dallasaurus – type locality for genus
- † Dallasaurus turneri – type locality for species
† Darwinula
Dasmosmilia
- † Dasmosmilia kochii – type locality for species
Dasyatis
- † Dasyatis commercensis – type locality for species
† Dathmila
- † Dathmila lineola
† Dawsonius
- † Dawsonius tigris
Mounted fossilized skeleton of the Late Cretaceous Alligator relative Deinosuchus
† Deinosuchus
- † Deinosuchus riograndensis
- † Deinosuchus rugosus – type locality for species
† Deltaichthys
- † Deltaichthys albuloides
† Dendrosmilia – tentative report
- † Dendrosmilia texana
† Denebia – type locality for genus
- † Denebia americana
Dentalina
- † Dentalina communis
Dentalium
- † Dentalium inornatum
- † Dentalium leve
- † Dentalium minor
- † Dentalium navarroi
- † Dentalium pauperculum
- † Dentalium sublineatum
- † Dentalium vaughani
† Dentonia
- † Dentonia leveretti
Restoration of the Late Triassic aetosaur Desmatosuchus with an anachronistic human to scale
† Desmatosuchus
- † Desmatosuchus haplocerus
- † Desmatosuchus smalli – type locality for species
- † Desmatosuchus spurensis – type locality for species
† Desmoceras
† Deussenia
- † Deussenia bellalirata
- † Deussenia ciboloensis
- † Deussenia corbis
- † Deussenia multilirae
- † Deussenia travisana
† Dhondtichlamys
- † Dhondtichlamys venustus
† Dichastopollenites
† Dictyoconus
- † Dictyoconus walnutensis
† Dimorpharaea
- † Dimorpharaea manchacaensis – type locality for species
† Dimorphastrea
- † Dimorphastrea stantoni – type locality for species
† Dinogymnium
- † Dinogymnium acuminatum
- † Dinogymnium euclaense
Diodora – tentative report
- † Diodora bartonvillensis
Fossilized skeleton of the Late Triassic tuatara relative Diphydontosaurus
† Diphydontosaurus – or unidentified related form
† Diploastrea
- † Diploastrea harrisi – type locality for species
- † Diploastrea hilli – type locality for species
- † Diploastrea vaughani – type locality for species
† Diplolonchidion – type locality for genus
- † Diplolonchidion murryi – type locality for species
† Diplomoceras
- † Diplomoceras trabeatus
† Discofascigera
Discorbis
- † Discorbis correcta
- † Discorbis minima
† Discoscaphites
- † Discoscaphites conradi
- † Discoscaphites erucoideus
† Distefanella – or unidentified comparable form
!-- Doswellia: Automatic taxobox --> † Doswellia
† Douvilleiceras
- † Douvilleiceras grandense
- † Douvilleiceras mammillatum
- † Douvilleiceras offarcinatum – or unidentified comparable form
- † Douvilleiceras orbignyi – or unidentified comparable form
- † Douvilleiceras quitmanense
- † Douvilleiceras rex
- † Douvilleiceras spathi
† Douvillelia – tentative report
- † Douvillelia skeltoni
Shell of a Dreissena freshwater mussel
† Dreissena
- † Dreissena tippana
† Drepanocheilus
- † Drepanocheilus corbetensis
- † Drepanocheilus cuthandensis
- † Drepanocheilus texanus
† Drepanochilus
- † Drepanochilus corbetensis
- † Drepanochilus davidsi
- † Drepanochilus martini
- † Drepanochilus texanus
- † Drepanochilus triliratus
† Drilluta
- † Drilluta brevispira
- † Drilluta crassicostata
- † Drilluta crassicostata longa
- † Drilluta distans
- † Drilluta major – or unidentified comparable form
- † Drilluta paucicostata
Restoration of the Late Triassic dinosaur relative Dromomeron
† Dromomeron
- † Dromomeron gregorii – type locality for species
† Dryptosaurus
† Dufrenoyia
- † Dufrenoyia justinae
- † Dufrenoyia rebeccae
† Durania

E

† Echinocorys
- † Echinocorys texanus
† Ecphora
- † Ecphora proquadricostata
Fossilized partial skeleton of the Late Cretaceous mosasaur Ectenosaurus
† Ectenosaurus
† Edmontonia – or unidentified comparable form
† Elea – tentative report
† Elephantaria
- † Elephantaria simondsi – type locality for species
† Ellipsoscapha
- † Ellipsoscapha mortoni
- † Ellipsoscapha striatella
Restoration of the Early Cretaceous-Eocene bony fish Enchodus , or the "saber-toothed herring"
† Enchodus
† Endoplocytia
† Endoptygma
- † Endoptygma leprosa
† Endostoma
- † Endostoma mexicana – or unidentified comparable form
† Engonoceras
- † Engonoceras complicatum
- † Engonoceras elegans
- † Engonoceras gibbosum
- † Engonoceras hilli
- † Engonoceras retardum
- † Engonoceras serpentinum
- † Engonoceras stolleyi
- † Engonoceras subjectum – or unidentified related form
† Enoploclytia
- † Enoploclytia triglypta
- † Enoploclytia wintoni
† Entolium
† Eoacteon
- † Eoacteon linteus
† Eodouvilleiceras
† Eomunidopsis
- † Eomunidopsis limonitica
Eonavicula
- † Eonavicula newspecies1
- † Eonavicula rostellata
† Eoradiolites
- † Eoradiolites davidsoni
† Eosiderastrea
- † Eosiderastrea cuyleri – type locality for species
† Eoursivivas
- † Eoursivivas harveyi
† Epiaster
- † Epiaster whitei
† Epiphaxum
- † Epiphaxum labyrinthicum – type locality for species
† Episcoposaurus – type locality for genus
- † Episcoposaurus haplocerus – type locality for species
† Epistomina
- † Epistomina charlottae
- † Epistomina lacunosa
† Epistreptophyllum
- † Epistreptophyllum boesei – type locality for species
- † Epistreptophyllum budaensis – type locality for species
- † Epistreptophyllum shumardi – type locality for species
† Epitonium
- † Epitonium sillimani
† Etea
- † Etea corsicana
- † Etea peasi
† Ethmocardium
- † Ethmocardium welleri
† Eubaculites
- † Eubaculites carinatus
Fossilized shell of the Late Cretaceous ammonoid cephalopod Eubostrychoceras
† Eubostrychoceras
- † Eubostrychoceras reevesi
† Eucalycoceras
- † Eucalycoceras templetonense – type locality for species
† Eufistulana
- † Eufistulana ripleyana
† Eufistulina
- † Eufistulina ripleyana
† Eugyra
- † Eugyra cuyleri – type locality for species
† Euhoplites – tentative report
† Eulima
- † Eulima clara
- † Eulima laevigata
† Euomphaloceras
- † Euomphaloceras alvaradoense
- † Euomphaloceras lonsdalei
- † Euomphaloceras septemseriatum
† Eupachydiscus
- † Eupachydiscus grossouvrei
Shell of a Euspira moon sea snail
† Euspira
- † Euspira dorothiensis
- † Euspira dorothiensis pendula
- † Euspira rectilabrum
- † Euspira rectilabrum texanus
- † Euspira rivulana
Euthriofusus – or unidentified related form
- † Euthriofusus convexus
† Eutrephoceras
- † Eutrephoceras dekayi
- † Eutrephoceras perlatus
- † Eutrephoceras planoventer
† Ewingia – type locality for genus
- † Ewingia problematica – type locality for species
Fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra
† Exogyra
- † Exogyra americana
- † Exogyra arientina
- † Exogyra cancellata
- † Exogyra columbella
- † Exogyra columbella levis
- † Exogyra costata
- † Exogyra costata spinifera
- † Exogyra erraticostata
- † Exogyra potosina
- † Exogyra spinifera
- † Exogyra texana

F

Fossilized shell of the Late Cretaceous ammonoid cephalopod Fagesia
† Fagesia
- † Fagesia catinus
† Faraudiella
- † Faraudiella franciscoensis
- † Faraudiella roermeri
† Faujasia
- † Faujasia chelonium – type locality for species
† Favia
- † Favia texana
† Feldmannia
- † Feldmannia wintoni
† Ficheuria
- † Ficheuria pernoni – or unidentified related form
† Fictoacteon
- † Fictoacteon alveolanus
- † Fictoacteon humilispira
- † Fictoacteon imlayi
- † Fictoacteon saxanus
Filisparsa
† Flaventia
- † Flaventia ludana
† Flemingostrea
- † Flemingostrea pratti
- † Flemingostrea subspatula
- † Flemingostrea subspatulata
† Flexomornis – type locality for genus
- † Flexomornis howei – type locality for species
† Flickia
- † Flickia simplex – type locality for species
† Fomalhautia – type locality for genus
- † Fomalhautia hortensae – type locality for species
† Forbesiceras
- † Forbesiceras beaumontianum
- † Forbesiceras brundrettei
- † Forbesiceras conlini
† Forresteria
- † Forresteria castellense – type locality for species
- † Forresteria forresteri – type locality for species
- † Forresteria sevierense – type locality for species
† Frenelopsis
- † Frenelopsis ramosissima
† Fulgerca
- † Fulgerca attenuata – or unidentified related form
- † Fulgerca venusta
† Fulpia
- † Fulpia pinguis
† Fungella
† Fuscinapedis – type locality for genus
- † Fuscinapedis woodbinensis – type locality for species
† Fusimilis
- † Fusimilis robustus
A living Fusinus sea snail
Fusinus
- † Fusinus cornelianus
- † Fusinus macnairyensis – or unidentified related form

G

A living Galeorhinus galeus school shark
Galeorhinus
- † Galeorhinus girardoti – or unidentified related form
† Gallolestes
- † Gallolestes agujaensis – type locality for species
† Garramites
- † Garramites nitidus
Gastrochaena
Gaudryina
- † Gaudryina austinana
- † Gaudryina cushmani
- † Gaudryina ellisorae
Gegania
- † Gegania manzaneti
† Geltena
- † Geltena nitida
- † Geltena obesa
- † Geltena prunoides
- † Geltena subcompressa
- † Geltena subequilatera
- † Geltena sybcompressa
† Gerdalia
Fossilized shell of the Carboniferous-Eocene bivalve Gervillia
† Gervillia
- † Gervillia bryani
- † Gervillia wellsi – tentative report
† Gervilliopsis
- † Gervilliopsis ensiformis
- † Gervilliopsis ensiformis extensa
- † Gervilliopsis invaginata
Ginglymostoma
† Glenrosa
- † Glenrosa pagiophylloides
- † Glenrosa texensis
† Globator
- † Globator vaughani – type locality for species
Illustration of a reconstructed skull of the Late Cretaceous mosasaur Globidens
† Globidens
- † Globidens dakotensis
Globigerina
- † Globigerina cretacea
- † Globigerina washitaensis
Glossus
- † Glossus bulbosa
- † Glossus hendersoni
- † Glossus irelandi
- † Glossus shumardi
- † Glossus slatana
- † Glossus slatana parva
Glycymeris
- † Glycymeris rotundata
- † Glycymeris rotundata kaufmanensis
Fossilized skull and shell of the Late Jurassic-Early Cretaceous turtle Glyptops
† Glyptops – tentative report
† Glyptoxoceras
- † Glyptoxoceras texanum
† Gobiates
† Goniochasma
- † Goniochasma scaphoides
† Goniocylichna
† Goniophorus
- † Goniophorus scotti
† Graciliala
- † Graciliala calcaris
- † Graciliala cooki
- † Graciliala johnsoni – tentative report
† Grammatodon
- † Grammatodon adkinsi
- † Grammatodon bowiei
† Granocardium
- † Granocardium bowenae
- † Granocardium conradi
- † Granocardium deltanum
- † Granocardium dumosum
- † Granocardium kuemmeli
- † Granocardium kummeli
- † Granocardium lowei
- † Granocardium rossae
- † Granocardium tholi
- † Granocardium tippananum
† Graphidula
- † Graphidula gabrielensis – tentative report
- † Graphidula hoggi
- † Graphidula lynnensis
- † Graphidula multicostata
- † Graphidula terebriformis
† Graptocarcinus
- † Graptocarcinus texanus
† Graysonia
- † Graysonia bergquisti
† Graysonites
- † Graysonites adkinsi
- † Graysonites wacoense
† Gryphaea
- † Gryphaea aucella – or unidentified related form
- † Gryphaea gibberosa
- † Gryphaea marcoui
- † Gryphaea pitcheri
- † Gryphaea washitaensis
† Gryphaeostrea
- † Gryphaeostrea vomer
Restorative portrait of the Late Cretaceous duck-billed dinosaur Gryposaurus .
† Gryposaurus – tentative report
- † Gryposaurus alsatei
† Guembelina
- † Guembelina globulosa
- † Guembelina paucistriata
† Gumbelina
† Gymnentome
- † Gymnentome valida
- † Gymnentome valida brevis
† Gypsichnites
- † Gypsichnites titanopelopatidus
Gyrodes
- † Gyrodes abyssinus
- † Gyrodes americanus
- † Gyrodes major
- † Gyrodes petrosus
- † Gyrodes rotundus
- † Gyrodes spillmani
- † Gyrodes subcarinatus
- † Gyrodes supraplicatus
- † Gyrodes tramitensis
† Gyronchus
- † Gyronchus dumblei
† Gyrostrea
- † Gyrostrea cortex

H

Shell of Haminoea bubble shell sea snail
Haminoea – tentative report
- † Haminoea simpsonensis
† Hamites
† Hamrabatis
- † Hamrabatis weltoni – type locality for species
† Hamulus
- † Hamulus huntensis
- † Hamulus onyx
- † Hamulus squamosus
† Haplostiche
- † Haplostiche texana
† Haplovoluta
- † Haplovoluta bicarinata
† Harduinia
- † Harduinia bexari
- † Harduinia dalli
- † Harduinia mortonis
† Helicoceras
- † Helicoceras navarroense
† Helopanoplia
Hemiaster
- † Hemiaster benhurensis
- † Hemiaster bexari
- † Hemiaster jacksoni
- † Hemiaster sabinal – type locality for species
- † Hemiaster texanus
- † Hemiaster wetherbyi
† Hemicalypterus – tentative report
- † Hemicalypterus weiri
Hemicerithium
- † Hemicerithium insigne
- † Hemicerithium interlineatum
† Hercorhynchus
- † Hercorhynchus malleiformis
† Hercorhyncus
- † Hercorhyncus coronale
- † Hercorhyncus malleiformis
- † Hercorhyncus mundum
- † Hercorhyncus nodosum
- † Hercorhyncus tippanus
- † Hercorhyncus vadosum
† Heterocoenia – tentative report
- † Heterocoenia hilli – type locality for species
- † Heterocoenia washitaensis – type locality for species
Heterodontus
- † Heterodontus granti – type locality for species
† Heteromorpha
- † Heteromorpha ammonite
Illustration of a living Hexanchus , or sixgill shark
Hexanchus
† Hillites
- † Hillites multilirae
- † Hillites septarianus
† Hindeastraea
- † Hindeastraea discoidea
† Holaster
- † Holaster simplex
† Holoclemensia – type locality for genus
- † Holoclemensia texana – type locality for species
Fossil of the Late Cretaceous lobster Hoploparia bearpawensis
Homarus
- † Homarus brittonetris
- † Homarus davisi
- † Homarus travisensis
† Homoeosolen
† Homomya
- † Homomya thrusheri – tentative report
† Hoplochelys
† Hoploscaphites
- † Hoploscaphites pumilis
† Huetamia
- † Huetamia buitronae
Life restoration of two of the Permian-Late Cretaceous cartilaginous fish Hybodus
--> † Hybodus
- † Hybodus brevicostatus – or unidentified comparable form
- † Hybodus butleri – type locality for species
† Hydnophora – tentative report
- † Hydnophora styriaca – type locality for species
† Hydrotribulus
- † Hydrotribulus asper
† Hylaeobatis – or unidentified comparable form
- † Hylaeobatis ornata
† Hypacanthoplites
- † Hypacanthoplites bakeri
- † Hypacanthoplites chihuahuaensis
- † Hypacanthoplites cragini
- † Hypacanthoplites quitmanensis
- † Hypacanthoplites rugosus
- † Hypacanthoplites sellardsi
- † Hypacanthoplites umbilicostatus
† Hypolophus
- † Hypolophus mcnultyi – type locality for species
† Hypophylloceras
- † Hypophylloceras tanit – or unidentified comparable form
† Hypoturrilites
- † Hypoturrilites youngi

I

† Ichthyodectes
Restoration of the Late Cretaceous toothed bird Ichthyornis
† Ichthyornis
- † Ichthyornis dispar
† Idoceras
- † Idoceras clarki
- † Idoceras schucherti
† Iguanodon – or unidentified comparable form
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
† Inoceramus
- † Inoceramus anomalus – or unidentified comparable form
- † Inoceramus arnoldi
- † Inoceramus arvanus
- † Inoceramus balticus
- † Inoceramus biconstrictus
- † Inoceramus cordiformis – or unidentified comparable form
- † Inoceramus cummingsi
- † Inoceramus deformis
- † Inoceramus dimidius
- † Inoceramus eulessanus
- † Inoceramus fragilis
- † Inoceramus prefragilis
- † Inoceramus vanuxemi – tentative report
† Irenesauripus
- † Irenesauripus glenrosensis
† Isastrea
- † Isastrea whitneyi – type locality for species
† Ischyrhiza
- † Ischyrhiza avonicola
- † Ischyrhiza mira
- † Ischyrhiza monasterica – type locality for species
† Isomicraster
- † Isomicraster danei
- † Isomicraster rossi – type locality for species

J

Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes
† Jeletzkytes
- † Jeletzkytes brevis
Juliacorbula
- † Juliacorbula linteroidea
- † Juliacorbula monmouthensis

K

† Kamerunoceras
- † Kamerunoceras calvertense
- † Kamerunoceras eschii – or unidentified comparable form
† Kasanskyella
- † Kasanskyella cuchillensis – tentative report
- † Kasanskyella fosteri
- † Kasanskyella spathi
- † Kasanskyella whitneyi – tentative report
† Kazanskyella
- † Kazanskyella cuchillense
- † Kazanskyella fosteri
- † Kazanskyella minima
- † Kazanskyella trinitensis
- † Kazanskyella whitneyi
† Kermackia – type locality for genus
- † Kermackia texana – type locality for species
† Kimbleia
- † Kimbleia albrittoni
- † Kimbleia capacis
† Koskinonodon – type locality for genus
- † Koskinonodon perfectus – type locality for species
Life restoration of the Late Cretaceous duck-billed dinosaur Kritosaurus
† Kritosaurus

L

† Laevigyra
- † Laevigyra dhondtae
† Lamellaerhynchia
- † Lamellaerhynchia indi – type locality for species
- † Lamellaerhynchia viae – type locality for species
A modern Lamna mackerel shark
Lamna
- † Lamna sulcata – or unidentified related form
† Lanieria
- † Lanieria uvaldana – type locality for species
† Lasalichthys
- † Lasalichthys hillsi
Laternula
- † Laternula bartoni
- † Laternula johnsonana
- † Laternula robusta
- † Laternula sublevis
- † Laternula sulcatina
- † Laternula tofana
- † Laternula virgata
† Latiala
- † Latiala lobata
† Latiastrea
- † Latiastrea whitneyi
Shells in multiple views of Latiaxis coral sea snails
Latiaxis
† Latiscopus – type locality for genus
- † Latiscopus disjunctus – type locality for species
† Laxispira
- † Laxispira lumbricalis
- † Laxispira monilifera
† Legumen
- † Legumen ellipticum
- † Legumen ligula
Lenticulina
- † Lenticulina cyprina
- † Lenticulina gaultina
† Lepidotes
Lepisosteus
† Leptarbacia
- † Leptarbacia argutus
Leptomaria
- † Leptomaria austinensis
- † Leptomaria robusta

Fossilized foot bones of the Late Cretaceous oviraptorosaur Leptorhynchos Leptorhynchos.jpg — Fossilized foot bones of the Late Cretaceous oviraptorosaur *Leptorhynchos*

† Leptorhynchos – type locality for genus

- † Leptorhynchos gaddisi – type locality for species
† Leptosolen
- † Leptosolen angustus
- † Leptosolen biplicata
- † Leptosolen levis
- † Leptosolen linguliformis
- † Leptosolen quadrilaterus
- † Leptosolen quadriliratus
† Leptostyrax
- † Leptostyrax bicuspidatus
- † Leptostyrax macrorhiza
Fossilized skull of the Late Triassic phytosaur Leptosuchus
† Leptosuchus
- † Leptosuchus crosbiensis – type locality for species
- † Leptosuchus imperfecta – type locality for species
- † Leptosuchus studeri – type locality for species
† Levicerithium
- † Levicerithium altum
- † Levicerithium basicostae
- † Levicerithium breviforme
- † Levicerithium microlirae – tentative report
- † Levicerithium planum
- † Levicerithium timberanum
† Lewesiceras
† Lewyites
- † Lewyites clinensis
† Leyvachelys
- † Leyvachelys cipadi
† Libognathus – type locality for genus
- † Libognathus sheddi – type locality for species
Life restoration of the Late Cretaceous plesiosaur Libonectes with an anachronistic scuba diver to scale
† Libonectes
- † Libonectes morgani – type locality for species
Lima
- † Lima acutilineata texana
- † Lima coahuilensis
- † Lima cokei
- † Lima deatsvillensis
- † Lima generosa
- † Lima geronimioensis
- † Lima geronimoensis
- † Lima guadalupensis
- † Lima pelagica
- † Lima wacoensis
Limatula
- † Limatula acutilineata
Limea
- † Limea reticulata
Limopsis
- † Limopsis meeki
† Linearia
- † Linearia crebelli
† Linearis
- † Linearis concentrica
- † Linearis metastriata
- † Linearis navarroana
- † Linearis pectinis
- † Linearis wieserae
Lingula
- † Lingula subspatulata
† Linter
- † Linter acutata
† Linthia
- † Linthia variabilis
A modern Linuparus spiny lobster
Linuparus
- † Linuparus adkinsi
- † Linuparus grimmeri
- † Linuparus watkinsi
† Lioestheria – tentative report
† Liopeplum
- † Liopeplum cretaceum
- † Liopeplum eiodermum
- † Liopeplum leioderma
- † Liopeplum leioderma breve
- † Liopeplum leioderma longum
- † Liopeplum leioderma tabulatum
- † Liopeplum rugosum
† Liopistha
- † Liopistha alternata
- † Liopistha formosa
- † Liopistha protexta
† Liothyris
- † Liothyris carolinensis – or unidentified comparable form
- † Liothyris navarroana
Liquidambar – tentative report
† Lirosoma
- † Lirosoma cretacea
† Lispodesthes
- † Lispodesthes lirata
- † Lispodesthes panda
- † Lispodesthes patula
† Lissodus
- † Lissodus babulski – or unidentified related form
Lithacoceras
† Lithacoceras
- † Lithacoceras malonianum
Lithophaga
† Lomirosa
- † Lomirosa cretacea
† Lonchidion
- † Lonchidion anitae – type locality for species
- † Lonchidion humblei – type locality for species
- † Lonchidion selachos
† Longoconcha
- † Longoconcha dalli
- † Longoconcha navarroensis
Mounted fossilized skeleton of the Late Triassic aetosaur Longosuchus
† Longosuchus
- † Longosuchus meadei – type locality for species
- † Longosuchus meadi
Lopha
- † Lopha falcata
- † Lopha mesenterica
- † Lopha subovata
† Loriolia
- † Loriolia rosana
† Lowenstamia
- † Lowenstamia subplanus – or unidentified comparable form
† Loxostomoides
- † Loxostomoides cushmani
† Lucasuchus – type locality for genus
- † Lucasuchus hunti – type locality for species
Lucina
- † Lucina aspera
- † Lucina chatfieldana
- † Lucina dentonana
- † Lucina glebula
- † Lucina oleodorsum
- † Lucina potosina
- † Lucina seminolis
† Luisogalathea
- † Luisogalathea cretacea
† Lupira
- † Lupira pyriformis
† Lutema
- † Lutema geniculata
- † Lutema hubbardi
- † Lutema munda
- † Lutema simpsonensis
† Lycettia
- † Lycettia tippana
- † Lycettia tippanus
† Lyriochlamys – tentative report

M

† Macraster
- † Macraster arguilera
- † Macraster elegans
- † Macraster nodopyda
† Macrepistius
† Macrocerithium
- † Macrocerithium tramitense
† Macromesodon
- † Macromesodon dumblei
† Magadiceramus
- † Magadiceramus complicatus
- † Magadiceramus crenelatus
- † Magadiceramus crenistriatus – or unidentified comparable form
- † Magadiceramus subquadratus
† Magnoavipes – type locality for genus
- † Magnoavipes lowei – type locality for species
Life restoration of the Late Triassic reptile Malerisaurus
† Malerisaurus
Malletia
- † Malletia littlei
- † Malletia longfrons
- † Malletia longifrons
- † Malletia stephensoni
† Mammites
- † Mammites powelli – type locality for species
† Mantelliceras
- † Mantelliceras cantianum
- † Mantelliceras martimpreyi – or unidentified comparable form
- † Mantelliceras saxbii
† Margaritella
- † Margaritella pumila
Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Mariella
† Mariella
- † Mariella bosquensis
- † Mariella brazoensis
- † Mariella camachoensis
- † Mariella cenomanensis – or unidentified comparable form
- † Mariella davisense
- † Mariella rhacioformis
- † Mariella wysogorskii
Mounted skeleton of the Late Cretaceous plesiosaur Martinectes
† Martinectes
- † Martinectes bonneri
† Mataxa
- † Mataxa subteres
- † Mataxa valida
- † Mataxa valida multilirae
† Mathilda
- † Mathilda cedarensis
- † Mathilda corona
† Meandraraea
- † Meandraraea plummeri – type locality for species
- † Meandraraea tulae – or unidentified comparable form
† Medionapus
- † Medionapus elongatus
Megalomphalus – or unidentified comparable form
† Megalosauropus – tentative report
- † Megalosauropus titanopelobatidus – type locality for species
Melanatria
- † Melanatria venusta
† Melicertites
Membranipora
Membraniporidra
† Menabites
- † Menabites austinensis
- † Menabites danei
- † Menabites delawarensis
- † Menabites vanuxemi
Fossilized skull of the Late Cretaceous multituberculate mammal Meniscoessus
† Meniscoessus
† Menuites
Mesalia
- † Mesalia shumardi
† Mesodma
† Mesomorpha
- † Mesomorpha excavata
- † Mesomorpha vaughani – type locality for species
† Metengonoceras
- † Metengonoceras acutum
- † Metengonoceras ambiguum
- † Metengonoceras bravoense
- † Metengonoceras dumbli
- † Metengonoceras inscriptum
† Metoicoceras
- † Metoicoceras crassicostae
- † Metoicoceras geslinianum
- † Metoicoceras latoventer
- † Metoicoceras swallovi
- † Metoicoceras swallovii
- † Metoicoceras swallovii macrum
Life restoration of the Late Triassic amphibian Metoposaurus with an anachronistic human to scale
† Metoposaurus
- † Metoposaurus bakeri – type locality for species
- † Metoposaurus fraasi
- † Metoposaurus jonesi – type locality for species
- † Metoposaurus perfecta
† Mexicaprina
- † Mexicaprina cornuta
† Micrabacia
- † Micrabacia marylandica
- † Micrabacia radiata – type locality for species
† Micraster
- † Micraster americanus
- † Micraster uddeni – type locality for species
† Microsolena
- † Microsolena texana – type locality for species
† Microsulcatoceras
- † Microsulcatoceras texanum – type locality for species
† Miocardiopsis
- † Miocardiopsis hendersoni
- † Miocardiopsis shumardi
Fossilized shell of the Devonian-modern marine bivalve Modiolus , or horsemussel
† Modiolus
- † Modiolus sedesclaris
- † Modiolus sedesclarus
- † Modiolus sedisclarus
Monodonta – tentative report
- † Monodonta cancellosa
† Monopleura – tentative report
† Monroea
- † Monroea castellana
Montastraea
- † Montastraea comalensis
- † Montastraea edwardsensis – type locality for species
- † Montastraea pecosensis – type locality for species
- † Montastraea roemeriana – type locality for species
- † Montastraea texana
- † Montastraea travisensis
- † Montastraea whitneyi
† Morea
- † Morea cancellaria
- † Morea cancellaria corsicanensis
- † Morea cancellaria crassa
- † Morea marylandica
- † Morea marylandica bella
- † Morea marylandica languida
- † Morea transenna
† Moremanoceras
- † Moremanoceras elgini
- † Moremanoceras flexuosum – type locality for species
† Morphastrea
- † Morphastrea barcenai – or unidentified comparable form
† Mortoniceras
- † Mortoniceras austinensis
- † Mortoniceras drakei
- † Mortoniceras maxima
- † Mortoniceras minima
- † Mortoniceras perinflatum
- † Mortoniceras rostratum
- † Mortoniceras wintoni
Life restoration of two of the Late Cretaceous Mosasaurus
† Mosasaurus
- † Mosasaurus maximus
- † Mosasaurus missouriensis – tentative report
† Muensterella ^[3]
- † Muensterella jillae – type locality for species^[3]
† Myobarbum
- † Myobarbum laevigatum
† Myriophyllia – tentative report
- † Myriophyllia dumblei – type locality for species
Myrtea
- † Myrtea stephensoni
† Mytiloides
- † Mytiloides columbianus
† Mytilus

N

† Naomichelys
† Napulus
- † Napulus octoliratus
- † Napulus tuberculatus
Multiple views of a fossilized shell belonging to a Natica moon snail
Natica
- † Natica dorothiensis
- † Natica humilis
- † Natica rivulana
- † Natica striaticostata
Nebrius
† Neithea
- † Neithea bexarensis
- † Neithea quinquecostata
† Nelltia
- † Nelltia stenzeli
† Nemocardium
- † Nemocardium fragile
- † Nemocardium guadalupense
- † Nemocardium marcosensis
- † Nemocardium tenue
† Nemodon
- † Nemodon adkinsi
- † Nemodon bowiei
- † Nemodon eufalensis
- † Nemodon eufaulensis
- † Nemodon eufaulensis lineatus
- † Nemodon grandis
- † Nemodon grandis navarroanus
- † Nemodon martindalensis
- † Nemodon navarroanus
- † Nemodon punctus
† Neobrites
- † Neobrites nodocostatus
† Neocardioceras
- † Neocardioceras juddii
† Neodeshayesites
- † Neodeshayesites comalensis
- † Neodeshayesites mayfieldensis
† Neogauthiericeras
- † Neogauthiericeras zafimahovai
Opalized guard of the belemnoid cephalopod Neohibolites
† Neohibolites
† Neophlycticeras
- † Neophlycticeras archerae – type locality for species
- † Neophlycticeras blancheti – or unidentified comparable form
- † Neophlycticeras fascicostatum – type locality for species
- † Neophlycticeras roemeri
- † Neophlycticeras texanum
† Neoptychites
† Nerinea – tentative report
Nerita
- † Nerita ornata
- † Nerita semilevis
Living Neritina or nerite snails
Neritina
- † Neritina ambrosana
- † Neritina insolita
Nodosaria
- † Nodosaria barkeri
† Nonactaeonina
- † Nonactaeonina deflexa
- † Nonactaeonina graphoides
- † Nonactaeonina tensa
- † Nonactaeonina triticea
† Nonaphalagodus – type locality for genus
- † Nonaphalagodus trinitiensis – type locality for species
Restoration of several species of the Late Cretaceous ammonoid cephalopod Nostoceras
† Nostoceras
- † Nostoceras approximans
- † Nostoceras colubriformis
- † Nostoceras draconsis
- † Nostoceras helicinum crassum
- † Nostoceras helicinum humile
- † Nostoceras helicinus
- † Nostoceras hyatti
- † Nostoceras splendidum
- † Nostoceras stantoni aberrans
- † Nostoceras stantoni prematurum
† Notodonax
† Notopoides – tentative report
- † Notopoides pflugervillensis – type locality for species
† Nucleopygus
- † Nucleopygus texanus
Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula
Nucula
- † Nucula camia
- † Nucula chatfieldensis
- † Nucula chatsfieldensis
- † Nucula ciboloensis
- † Nucula cuneifrons
- † Nucula microstriata
- † Nucula nacatochana
- † Nucula percrassa
- † Nucula perequalis
- † Nucula rivulana
- † Nucula stantoni
- † Nucula waltonensis
Nuculana
- † Nuculana coloradoensis
- † Nuculana corbetensis
- † Nuculana corsicana
- † Nuculana houstoni
- † Nuculana mutuata
- † Nuculana protexta
- † Nuculana rostratruncata
- † Nuculana travisana
- † Nuculana whitfieldi
† Nudivagus – tentative report
† Nymphalucina
- † Nymphalucina linearia
- † Nymphalucina parva
† Nyssa

O

† Odaxosaurus
- † Odaxosaurus piger
A living Odontaspis sand shark
Odontaspis
- † Odontaspis aculeatus
† Ogilviastraea – tentative report
- † Ogilviastraea richardsi – type locality for species
† Oklatheridium
- † Oklatheridium minax
- † Oklatheridium szalayi
† Oligoptycha
- † Oligoptycha americana – tentative report
† Onchopristis
- † Onchopristis dunklei
Fossilized vertebrae of the Cretaceous sawfish Onchosaurus
† Onchosaurus
† Opertochasma
- † Opertochasma scaphoides
- † Opertochasma subconicum
- † Opertochasma venustum
† Ophiomorpha
† Ophiopsis – tentative report
Ophiura
- † Ophiura graysonensis
- † Ophiura texana
- † Ophiura travisana – type locality for species
† Opis
- † Opis elevata – tentative report
Life restoration of the Late Cretaceous ostrich dinosaur Ornithomimus
† Ornithomimus
† Ornopsis
- † Ornopsis digressa
- † Ornopsis maxeyi
- † Ornopsis pulchra
- † Ornopsis solistella
† Ostlingoceras
- † Ostlingoceras brandi
Shell of an Ostrea , or oyster
Ostrea
- † Ostrea alternans
- † Ostrea bella
- † Ostrea beloiti
- † Ostrea carica
- † Ostrea carinata – or unidentified related form
- † Ostrea crenulimargo
- † Ostrea leveretti
- † Ostrea lugubris
- † Ostrea owenana
- † Ostrea panda
- † Ostrea rubradiata
- † Ostrea soleniscus
- † Ostrea subovata
- † Ostrea subradiata
† Otischalkia – type locality for genus
- † Otischalkia elderae – type locality for species
† Ovalastrea – type locality for genus
- † Ovalastrea fredericksburgensis – type locality for species
- † Ovalastrea pecosensis – type locality for species
† Oxyrhina
- † Oxyrhina extenta
† Oxytropidoceras
- † Oxytropidoceras acuticarinatum
- † Oxytropidoceras acutocarinatum
- † Oxytropidoceras bravoensis
- † Oxytropidoceras carbonarium
- † Oxytropidoceras diazi
- † Oxytropidoceras moorei
- † Oxytropidoceras multifidum
- † Oxytropidoceras pandalense – or unidentified comparable form
- † Oxytropidoceras powelli
- † Oxytropidoceras salasi
- † Oxytropidoceras stenzeli
- † Oxytropidoceras supani
- † Oxytropidoceras texanum
- † Oxytropidoceras uddeni

P

† Pachycheilosuchus – type locality for genus
- † Pachycheilosuchus trinquei – type locality for species
† Pachydesmoceras
† Pachydiscus
- † Pachydiscus arkansanus
- † Pachydiscus paulsoni
- † Pachydiscus scotti
- † Pachydiscus travisi
Restorative portrait of the Early Jurassic synapsid (mammal precursor) Pachygenelus
† Pachygenelus
- † Pachygenelus milleri – type locality for species
† Pachymelania
† Pachymya
Pagurus
- † Pagurus travisensis
† Paladmete
- † Paladmete alta
- † Paladmete cancellaria
- † Paladmete cancelleria
- † Paladmete corbuliformis
- † Paladmete elegans
- † Paladmete gardnerae
- † Paladmete inequalis
Fossilized skeleton of the Early Cretaceous-Eocene bony fish Palaeobalistum
† Palaeobalistum
- † Palaeobalistum geiseri – type locality for species
- † Palaeobalistum rectidens – type locality for species
† Palaeoctonus
- † Palaeoctonus dumblianus – type locality for species
- † Palaeoctonus orthodon – type locality for species
† Palaeocypraea
- † Palaeocypraea corsicanana
- † Palaeocypraea nuciformis
† Palaeogaleus
- † Palaeogaleus navarroensis – type locality for species
† Paleollanosaurus – type locality for genus
- † Paleollanosaurus fraseri – type locality for species
† Paleomolops
- † Paleomolops langstoni – type locality for species
† Paleopsephaea
- † Paleopsephaea decorosa
- † Paleopsephaea patens
- † Paleopsephaea sinuosa
- † Paleopsephaea vadoana
Life restoration of the Late Triassic phytosaur Paleorhinus
† Paleorhinus
- † Paleorhinus sawini – type locality for species
† Paluxysuchus – type locality for genus
- † Paluxysuchus newmani – type locality for species
† Panis
- † Panis cuneiformis
Panopea
- † Panopea anacachoensis – type locality for species
- † Panopea subplicata
† Pantojaloria
- † Pantojaloria sphaerica
† Pappotherium – type locality for genus
- † Pappotherium pattersoni – type locality for species
† Paracimexomys
Paracyprideis
- † Paracyprideis graysonensis
Paracypris
- † Paracypris alta
† Parafusus – tentative report
† Parahoplites
- † Parahoplites thomasi
- † Parahoplites wintoni
† Paraisurus
- † Paraisurus compressus
† Paramicrodon – type locality for genus
- † Paramicrodon estesi – type locality for species
† Parandiceras
- † Parandiceras indicum – or unidentified comparable form
† Paranecrocarcinus
- † Paranecrocarcinus moseleyi
† Paranecrocarinus
- † Paranecrocarinus ovalis
† Paranomia
- † Paranomia scabra
Fossilized shell of the Late Cretaceous ammonoid cephalopod Parapuzosia with a human indicating its size
† Parapuzosia
- † Parapuzosia americana – type locality for species
- † Parapuzosia bosei – type locality for species
- † Parapuzosia sealei – type locality for species
† Parasaniwa – or unidentified comparable form
- † Parasaniwa wyomingensis
Parasmilia
- † Parasmilia austinensis
- † Parasmilia bullardi – type locality for species
- † Parasmilia graysonensis – type locality for species
† Parasuchus
- † Parasuchus bransoni
Mounted fossilized skeleton of the Late Triassic aetosaur Paratypothorax
† Paratypothorax
† Paraxiopsis
- † Paraxiopsis erugatus
† Parengonoceras
- † Parengonoceras roemeri
† Parmicorbula
- † Parmicorbula corneliana
- † Parmicorbula hillensis
- † Parmicorbula numerosa
- † Parmicorbula rupana
- † Parmicorbula sinuosa
- † Parmicorbula suffalciata
- † Parmicorbula terramaria
- † Parmicorbula vokesi
† Paronychodon
- † Paronychodon lacustris – or unidentified comparable form
Parvamussium
- † Parvamussium danei
† Parvivoluta – tentative report
Patellina
- † Patellina subcretacea
Fossilized skull in multiple views of the Early Cretaceous armored dinosaur Pawpawsaurus
† Pawpawsaurus – type locality for genus
- † Pawpawsaurus campbelli – type locality for species
† Pecten
- † Pecten bellula
- † Pecten bellulus
- † Pecten catherina
- † Pecten georgetownensis
- † Pecten moodyi
- † Pecten subalpinus
- † Pecten texanus
- † Pecten venustus
- † Pecten wrighti
† Pedinopsis
- † Pedinopsis pondi
† Peilinia
- † Peilinia quadriplicata
† Pekinosaurus – or unidentified related form
- † Pekinosaurus olseni
† Peneteius
Periploma
- † Periploma edwardsi
† Periplomya
- † Periplomya sulcatina
Perna – report made of unidentified related form or using admittedly obsolete nomenclature
- † Perna texana
† Perrisonota
- † Perrisonota littlei
- † Perrisonota protexta
Petrophyllia
† Phacellocoenia – tentative report
- † Phacellocoenia tolmachoffana – type locality for species
Phacoides
- † Phacoides mattiformis
† Pharodina
- † Pharodina ferrana
† Phelopteria
- † Phelopteria dalli
- † Phelopteria linguaeformis
- † Phelopteria timberensis
Pholadidea
- † Pholadidea ragsdalensis
Fossilized shell of the Early Triassic-Pliocene marine bivalve Pholadomya
Pholadomya
- † Pholadomya coahuilensis
- † Pholadomya goldenensis
- † Pholadomya ingens
- † Pholadomya littlei
- † Pholadomya occidentalis
- † Pholadomya shattucki
Pholas
- † Pholas scaphoides
† Phyllobrissus
- † Phyllobrissus cubensis
Phymosoma
† Phymosoma
- † Phymosoma hilli
† Phytosaurus
† Piestochilus
- † Piestochilus curviliratus
- † Piestochilus levis
† Pinella
- † Pinella reticulata
† Pinna
- † Pinna laqueata
† Pirsila
- † Pirsila decora
- † Pirsila simpla
- † Pirsila tensa
Pitar
- † Pitar yoakumi
Fossilized shell of the Late Cretaceous ammonoid cephalopod Placenticeras
† Placenticeras
- † Placenticeras interealare
- † Placenticeras meeki
- † Placenticeras syrtale
Placopsilina
- † Placopsilina minima
† Placotrochus
- † Placotrochus texanus
Plagioecia
† Planocephalosaurus
- † Planocephalosaurus lucasi – type locality for species
Planulina
- † Planulina eaglefordensis
Restoration of the Late Cretaceous mosasaur Platecarpus
† Platecarpus
- † Platecarpus planifrons
- † Platecarpus somenensis – or unidentified comparable form
- † Platecarpus tympaniticus
† Platiknemiceras
- † Platiknemiceras flexuosum
† Platyceramus
- † Platyceramus cycloides
- † Platyceramus mantelli - or unidentified loosely related form
Life restoration of the Early-Late Cretaceous ichthyosaur Platypterygius
† Platypterygius
† Plesiacanthoceras
- † Plesiacanthoceras bellsanum
† Plesiosaurus
† Pleuriocardia
- † Pleuriocardia eufaulense
- † Pleuriocardia eufaulensis huntanum
† Pleurocora
- † Pleurocora coalescens
† Pleuromya
- † Pleuromya inconstans
† Pleurosmilia
- † Pleurosmilia quaylei – type locality for species
- † Pleurosmilia saxifisi – type locality for species
Fossilized shell of a Pleurotomaria slit snail
Pleurotomaria
- † Pleurotomaria macilenta
† Plicatolamna – or unidentified comparable form
- † Plicatolamna arcuata
† Plicatoscyllium – type locality for genus
- † Plicatoscyllium antiquum – type locality for species
- † Plicatoscyllium derameei – type locality for species
Plicatula
- † Plicatula clarki
- † Plicatula dentonensis
- † Plicatula goldenana
- † Plicatula incongrua
- † Plicatula mullicaensis
- † Plicatula tetrica
† Plioaxius
- † Plioaxius texensis
Life restoration of the Late Cretaceous mosasaur Plioplatecarpus
† Plioplatecarpus – tentative report
† Poecilocrinus
- † Poecilocrinus dispandus
Polinices
- † Polinices kummeli
- † Polinices stephensoni
† Pollex
- † Pollex angulatus
- † Pollex obesus
† Polyacrodus
- † Polyacrodus parvidens – or unidentified related form
† Polyptychodon
- † Polyptychodon hudsoni – type locality for species
† Polytremacis
- † Polytremacis hancockensis – type locality for species
- † Polytremacis urgonensis
† Pontocyprella
- † Pontocyprella alexanderi
† Poposaurus
- † Poposaurus gracilis
- † Poposaurus langstoni
† Porituberoolithus
† Postligata
Restoration of the Late Triassic crocodile relative Postosuchus with an anachronistic human to scale
† Postosuchus – type locality for genus
- † Postosuchus kirkpatricki – type locality for species
† Praeleda
- † Praeleda compar
† Prionocyclites
- † Prionocyclites mite
† Prionocyclus
- † Prionocyclus albinus
- † Prionocyclus hyatti
- † Prionocyclus macombi
- † Prionocyclus wyomingensis
† Priontropis
- † Priontropis woolgari – or unidentified related form
† Priscomactra
- † Priscomactra cymba
- † Priscomactra munda
† Procardia
- † Procardia torta
† Procheloniceras
- † Procheloniceras albrechtiaustriae – or unidentified related form
Life restoration of the Late Cretaceous mosasaur Prognathodon preying upon an ammonoid cephalopod
† Prognathodon – tentative report
† Promystriosuchus – type locality for genus
- † Promystriosuchus ehleri – type locality for species
† Proraster
- † Proraster dalli
† Proscincetes
- † Proscincetes texanus
† Prosiren – type locality for genus
- † Prosiren elinorae – type locality for species
† Protarca
- † Protarca tramitensis
† Protecovasaurus – type locality for genus
- † Protecovasaurus lucasi – type locality for species
† Protexanites
- † Protexanites planatus
† Protoavis – type locality for genus
- † Protoavis texensis – type locality for species
† Protocallianassa
- † Protocallianassa pleuralum – type locality for species
† Protocardia
- † Protocardia guadalupense
- † Protocardia hillana
- † Protocardia marcosensis
- † Protocardia spillmani
- † Protocardia texana
- † Protocardia timberensis
- † Protocardia torta
- † Protocardia wadei
† Protodonax
- † Protodonax lingulatus
- † Protodonax lingulatus tensus
- † Protodonax robustus
† Protohadros – type locality for genus
- † Protohadros byrdi – type locality for species
† Protoplatyrhina
- † Protoplatyrhina renae
Life restoration of the Late Cretaceous bony fish Protosphyraena
† Protosphyraena
† Proxestops
† Pseudananchys
- † Pseudananchys stephensoni – type locality for species
† Pseudaspidoceras
- † Pseudaspidoceras flexuosum
† Pseudocalycoceras
- † Pseudocalycoceras angolaense
† Pseudoclavulina
- † Pseudoclavulina clavata
† Pseudocoeniopsis – tentative report
- † Pseudocoeniopsis wintoni – type locality for species
Fossilized teeth of the Cretaceous shark Pseudocorax
† Pseudocorax
- † Pseudocorax granti
† Pseudogaudryinella
- † Pseudogaudryinella capitosa
† Pseudohypolophus
† Pseudolimea
- † Pseudolimea kimbroensis
- † Pseudolimea reticulata
- † Pseudolimea sellardsi
Pseudomalaxis
- † Pseudomalaxis patens
- † Pseudomalaxis pateriformis
Fossilized shell of a Pseudomelania sea snail
† Pseudomelania
- † Pseudomelania basicostata
- † Pseudomelania ferrata
- † Pseudomelania roanokana
† Pseudoncrocarcinus
- † Pseudoncrocarcinus scotti
† Pseudoperna
- † Pseudoperna congesta
† Pseudopetalodontia
- † Pseudopetalodontia felixi
† Pseudoptera
- † Pseudoptera hornensis
- † Pseudoptera hornesis
- † Pseudoptera rushana
- † Pseudoptera serrata
- † Pseudoptera viana
† Psilomya
- † Psilomya concentrica
- † Psilomya levis
Life restoration of the Late Cretaceous pterosaur Pteranodon
† Pteranodon – or unidentified comparable form
† Pteria
- † Pteria linguaeformis – tentative report
- † Pteria rhombica
† Pterocerella
- † Pterocerella densatus
- † Pterocerella densatus nacatochanus
- † Pterocerella poinsettiformis
- † Pterocerella robustus
† Pterot
- † Pterot castrovillensis – or unidentified related form
Fossilized shell of the Jurassic-Cretaceous marine bivalve Pterotrigonia
† Pterotrigonia
- † Pterotrigonia castrovillensis
- † Pterotrigonia eufalensis
- † Pterotrigonia eufaulensis
- † Pterotrigonia eufaulensis gabbi
- † Pterotrigonia marionensis
- † Pterotrigonia stantoni
† Ptychomya
- † Ptychomya stantonii
† Ptychotrygon
- † Ptychotrygon vermiculata
- † Ptychotrygon winni – type locality for species
† Pugnellus
- † Pugnellus densatus
- † Pugnellus goldmani
Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Puzosia
† Puzosia
- † Puzosia crebrisulcata – or unidentified comparable form
Pycnodonte
- † Pycnodonte belli
- † Pycnodonte mutabilis
- † Pycnodonte vesicularis
† Pycnomicrodon
- † Pycnomicrodon texanus
† Pyrgulifera
- † Pyrgulifera costata
- † Pyrgulifera costata sublevis
- † Pyrgulifera costata tuberata
- † Pyrgulifera ornata
† Pyrifusus
† Pyrina
- † Pyrina parryi
† Pyropsis
- † Pyropsis lanhami
- † Pyropsis proxima – or unidentified related form

Q

† Quayia – or unidentified comparable form
- † Quayia zideki
Mounted fossilized skeleton of the Late Cretaceous pterosaur Quetzalcoatlus
† Quetzalcoatlus – type locality for genus
- † Quetzalcoatlus northropi – type locality for species
† Quitmaniceras
- † Quitmaniceras reaseri
† Quitmanites
- † Quitmanites ceratitosus
- † Quitmanites evolutus

R

† Rachiosoma
- † Rachiosoma hondoensis – type locality for species
† Radiopecten
- † Radiopecten mississippiensis
Raja
- † Raja farishi – type locality for species
† Ramsetia
- † Ramsetia whitfieldi
† Raninella
† Remera
- † Remera decora
- † Remera juncea
- † Remera microstriata
† Remnita
- † Remnita anomalocostata
- † Remnita biacuminata
† Remondia
- † Remondia robbinsi
Reophax
- † Reophax deckeri
† Reptomulticava
† Restes
† Rewaconodon – or unidentified related form
- † Rewaconodon tikiensis
† Rhamphidoceras – type locality for genus
- † Rhamphidoceras saxatilis – type locality for species
Rhinobatos
- † Rhinobatos craddocki – type locality for species
- † Rhinobatos uvulatus – type locality for species
Restoration of the Late Cretaceous-Paleocene ray Rhombodus
† Rhombodus
- † Rhombodus binkhorsti
† Rhytidohoplites
- † Rhytidohoplites robertsi
† Rhytophorus – tentative report
† Richardoestesia
- † Richardoestesia gilmorei
- † Richardoestesia isosceles – type locality for species
† Rileymillerus – type locality for genus
- † Rileymillerus cosgriffi – type locality for species
A living Ringicula sea snail
Ringicula
- † Ringicula anfractoline
- † Ringicula arlingtonensis
- † Ringicula culbertsoni
- † Ringicula pulchella
- † Ringicula sufflata
Rogerella
- † Rogerella cragini – type locality for species
† Romaniceras
- † Romaniceras aguilerai
- † Romaniceras zacatecana
Rostellaria – tentative report
- † Rostellaria robertsi
† Russellosaurus – type locality for genus
- † Russellosaurus coheni – type locality for species
Life restoration of the Late Triassic phytosaur Rutiodon
† Rutiodon

S

Salenia
- † Salenia hondoensis – type locality for species
† Sanmiguelia
† Sanoarca
- † Sanoarca faucana
- † Sanoarca grandis
† Sargana
- † Sargana stantoni
Diagram illustrating the Early Cretaceous long-necked dinosaur Sauroposeidon with anachronistic humans to scale
† Sauroposeidon
- † Sauroposeidon proteles
† Saurornitholestes
- † Saurornitholestes langstoni – or unidentified comparable form
† Sauvagesia – tentative report
- † Sauvagesia hilli
† Saynella
- † Saynella hilli
Scalpellum – tentative report
† Scambula
- † Scambula perplana
Restoration of several of the Early Cretaceous-Miocene shark Scapanorhynchus
† Scapanorhynchus
- † Scapanorhynchus texanus
- † Scapanorhynchus textanus
† Scapherpeton
† Scaphites
- † Scaphites bosquensis – type locality for species
- † Scaphites brittonensis
- † Scaphites hippocrepis - or unidentified loosely related form
- † Scaphites rugosus
- † Scaphites warreni
- † Scaphites yorkensis
† Schizobasis
Scintilla – tentative report
- † Scintilla ramoni
† Sciponoceras
- † Sciponoceras gracile
Fossilized snout of the Late Cretaceous ray relative Sclerorhynchus
† Sclerorhynchus
- † Sclerorhynchus pettersi – type locality for species
† Scolomastax – type locality for genus^[4]
- † Scolomastax sahlsteini – type locality for species^[4]
Scyliorhinus
- † Scyliorhinus ivagrantae – type locality for species
† Selaginella – or unidentified comparable form
† Seminodicrescis
† Seminola – tentative report
† Semiometra
- † Semiometra minuta
† Semionotus – or unidentified comparable form
† Senis
- † Senis elongata
- † Senis elongatus
Serpula
- † Serpula cretacea
- † Serpula implicata
- † Serpula lineata
† Serratolamna
- † Serratolamna serrata
† Sexta
- † Sexta ethelana
- † Sexta navicula
† Sharpeiceras
- † Sharpeiceras schlueteri
- † Sharpeiceras tlahualiloense
† Shuparoceras
Life restoration of the Late Triassic distant crocodilian relative Shuvosaurus
† Shuvosaurus – type locality for genus
- † Shuvosaurus inexpectatus – type locality for species
† Siderastrea
- † Siderastrea tuckerae – type locality for species
† Siderofungia
- † Siderofungia irregularis
† Sierritasuchus – type locality for genus
- † Sierritasuchus macalpini – type locality for species
† Sinonia
- † Sinonia levis
† Siphodictyum
Siphotextularia
- † Siphotextularia washitaensis
Fossils of the Cambrian-modern worm burrow ichnogenus Skolithos
† Skolithos
Smilotrochus
- † Smilotrochus palmerae – type locality for species
† Solanocrinites
- † Solanocrinites wertheimi
Solemya
- † Solemya bilix – tentative report
† Solenoceras
- † Solenoceras multicostatum
- † Solenoceras reesidei
- † Solenoceras texanum
† Solyma
- † Solyma bilix
- † Solyma elliptica
- † Solyma gardnerae
- † Solyma parva
- † Solyma stewarti
† Spalacotheroides – type locality for genus
- † Spalacotheroides bridwelli – type locality for species
† Spathites
- † Spathites coahuilaensis
- † Spathites rioensis
† Specus
- † Specus fimbriatus
Opalized shell of the Late Cretaceous ammonoid cephalopod Sphenodiscus
† Sphenodiscus
- † Sphenodiscus intermedius
- † Sphenodiscus lobatus
- † Sphenodiscus pleurisepta
- † Sphenodiscus tirensis
† Spinosuchus – type locality for genus
- † Spinosuchus caseanus – type locality for species
† Spironema
- † Spironema perryi
Spiroplectammina
- † Spiroplectammina ammovitrea
- † Spiroplectammina goodlandana
Spondylus
- † Spondylus hilli
- † Spondylus munitus
- † Spondylus siccus – type locality for species
Fossilized tooth of the Late Cretaceous shark Squalicorax
Squalicorax
- † Squalicorax kaupi
- † Squalicorax pristodontus
Squalus
- † Squalus huntensis – type locality for species
† Squatigaleus
- † Squatigaleus sulphurensis – type locality for species
† Squatirhina
- † Squatirhina americana
† Stamenocella
† Stantonella
- † Stantonella interrupta
† Stearnsia
- † Stearnsia robbinsi
† Stelidioseris
- † Stelidioseris bellensis – type locality for species
- † Stelidioseris pattoni – type locality for species
- † Stelidioseris whitneyi – type locality for species
† Stellatopollis
† Steorrosia
- † Steorrosia aspera
Stephanocoenia – tentative report
† Stephanomorpha – tentative report
- † Stephanomorpha saxirotundi – type locality for species
† Stoliczkaia
- † Stoliczkaia argonautiformis
- † Stoliczkaia conlini – type locality for species
- † Stoliczkaia crotaloides
- † Stoliczkaia scotti
- † Stoliczkaia texana – type locality for species
Stomatopora
† Stomohamites – tentative report
Striarca
- † Striarca cuneata
- † Striarca plummeri
- † Striarca saffordi
- † Striarca webbervillensis
† Striaticostatum
- † Striaticostatum bexarense
- † Striaticostatum pondi
- † Striaticostatum sparsum
Life restoration of the Late Cretaceous ostrich dinosaur Struthiomimus
† Struthiomimus – or unidentified comparable form
† Suarodon
† Sumitomoceras
- † Sumitomoceras bentonianum
† Syncyclonema
- † Syncyclonema archeri
- † Syncyclonema kingi
- † Syncyclonema simplicius
- † Syncyclonema travisanus
† Synorichthys – tentative report
- † Synorichthys stewarti

T

† Tancredia – tentative report
† Tanyosphaeridium
- † Tanyosphaeridium salpinx
† Tarrantites
- † Tarrantites adkinsi
† Tarrantoceras
- † Tarrantoceras cuspidum
- † Tarrantoceras sellardsi
† Tarsomordeo – type locality for genus^[5]
- † Tarsomordeo winkleri – type locality for species^[5]
† Technosaurus – type locality for genus
- † Technosaurus smalli – type locality for species
† Tecovasaurus – type locality for genus
- † Tecovasaurus murryi – type locality for species
† Tecovasuchus – type locality for genus
- † Tecovasuchus chatterjeei – type locality for species
Teinostoma
Shell of a Tellina , or tellin
Tellina
- † Tellina duganensis
- † Tellina dugansensis
- † Tellina munda
- † Tellina parkerana
- † Tellina patula
- † Tellina rivana
- † Tellina stabulana
† Tellinimera
- † Tellinimera buboana
- † Tellinimera gabbi
- † Tellinimera munda
† Tenea
- † Tenea parilis
- † Tenea patula
Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus
† Tenontosaurus
- † Tenontosaurus dossi – type locality for species
† Tentontosaurus
† Tenuipteria
- † Tenuipteria argentea
- † Tenuipteria argenteus
Terebratulina
- † Terebratulina filosa
- † Terebratulina noackensis
† Terebrimya
- † Terebrimya lamarana
Teredolites
† Terlinguachelys – type locality for genus
- † Terlinguachelys fischbecki – type locality for species
Fossilized skull of the Late Cretaceous crocodilian relative Terminonaris
† Terminonaris
- † Terminonaris robusta – or unidentified comparable form
† Tetragonites
- † Tetragonites brazoensis – type locality for species
† Texabatis – type locality for genus
- † Texabatis corrugata – type locality for species
† Texacephale – type locality for genus
- † Texacephale langstoni – type locality for species
† Texagryphea
† Texanites
- † Texanites dentatocarinatum
- † Texanites gallicus
- † Texanites vanhoepeni
† Texasetes – type locality for genus
- † Texasetes pleurohalio – type locality for species
† Texasia
- † Texasia dartoni
† Texicaprina
- † Texicaprina vivari
† Texigryphaea
- † Texigryphaea sashitaensis
† Texigryphea
- † Texigryphea washitaensis
Fossilized shell of the Carboniferous-modern foraminiferan Textularia
Textularia
- † Textularia losangica
- † Textularia rioensis
† Thamnasteria
- † Thamnasteria hoffmeisteri – type locality for species
† Thamnoseris – tentative report
- † Thamnoseris morchella – type locality for species
† Thecosmilia – tentative report
† Thomasites
- † Thomasites adkinsi
† Thomelites
† Thryptodus ^[6]
- † Thryptodus loomisi – type locality for species^[6]
† Thylacus
- † Thylacus cretaceus
† Thyracella
† Tiarasmilia – type locality for genus
- † Tiarasmilia casteri – type locality for species
† Tibiaporrhais – tentative report
- † Tibiaporrhais cooperensis
† Tintorium
- † Tintorium pogodaformis – or unidentified comparable form
† Titanosarcolites
- † Titanosarcolites oddsensis
† Tornatellaea
- † Tornatellaea cretacea
- † Tornatellaea eretacea
- † Tornatellaea eretacea appressa
- † Tornatellaea gramdis
- † Tornatellaea scatesi
Mounted fossilized skeleton of the Late Cretaceous horned dinosaur Torosaurus
† Torosaurus
- † Torosaurus utahensis – or unidentified comparable form
† Toucasia
- † Toucasia hancockensis
- † Toucasia texana
† Tovula
- † Tovula microlirae
† Trachybaculites
- † Trachybaculites columna
Trachycardium
- † Trachycardium eufaulensis
- † Trachycardium tinninense
† Trachyscaphites
- † Trachyscaphites densicostatus – type locality for species
- † Trachyscaphites porchi
- † Trachyscaphites spiniger
† Trigonarca – tentative report
† Trigonia
- † Trigonia clavigera
- † Trigonia emoryi
- † Trigonia goodellii
- † Trigonia munita
- † Trigonia proscabra
- † Trigonia stantoni
- † Trigonia vyschetzkii
† Trilophosaurus – type locality for genus
- † Trilophosaurus buettneri – type locality for species
- † Trilophosaurus jacobsi
Life restoration of the Late Cretaceous plesiosaur Trinacromerum
† Trinacromerum – type locality for genus
- † Trinacromerum bentonianum – type locality for species
† Trinitichelys – type locality for genus
- † Trinitichelys hiatti – type locality for species
† Triodus
- † Triodus moorei
† Triopticus – type locality for genus
- † Triopticus primus – type locality for species
† Tristix
- † Tristix gigantea
- † Tristix quadrata
Fossilized shell in multiple views of the Early-Late Cretaceous sea snail Trochactaeon
† Trochactaeon
- † Trochactaeon cumminsi
Trochocyathus
- † Trochocyathus gardnerae – type locality for species
- † Trochocyathus scottianus – type locality for species
- † Trochocyathus sellardsi – type locality for species
- † Trochocyathus taylorensis – type locality for species
- † Trochocyathus wintoni – type locality for species
- † Trochocyathus woolmani
† Trochoseris
- † Trochoseris shattucki – type locality for species
† Trochosmilia
- † Trochosmilia stainbrooki – type locality for species
† Troostella
- † Troostella brevispira
- † Troostella sublinearis
Tryonia
- † Tryonia valida
† Tundora
- † Tundora tuberculata
Turboella
- † Turboella crebricostata
- † Turboella tallahatchiensis
† Turgidodon
- † Turgidodon lillegraveni – or unidentified comparable form
† Turrilites
- † Turrilites acutus
- † Turrilites saudersorum
Fossilized shells of the Late Jurassic-modern tower snail Turritella
Turritella
- † Turritella anstini
- † Turritella bilira
- † Turritella delriensis
- † Turritella forgemoli – or unidentified comparable form
- † Turritella hilgardi
- † Turritella houstonia
- † Turritella macnairyensis
- † Turritella marnochi
- † Turritella paravertebroides
- † Turritella quadrilira
- † Turritella seriatimgranulata
- † Turritella shuleri
- † Turritella trilira
- † Turritella vertebroides
- † Turritella vertebroides jonesi
- † Turritella winchelli
† Turseodus – tentative report
† Tylosaurus
- † Tylosaurus kansasensis
- † Tylosaurus nepaeolicus
- † Tylosaurus proriger – or unidentified comparable form
† Typothorax
Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus
† Tyrannosaurus
- † Tyrannosaurus rex

U

† Uddenia
† Uktenadactylus
- † Uktenadactylus wadleighi – type locality for species
† Unicardium
- † Unicardium concentricum
Unio
A living Upogebia mud shrimp
† Upogebia
- † Upogebia rhacheochir
† Urceolabrum
- † Urceolabrum mantachieensis – tentative report
- † Urceolabrum tuberculatum
† Ursirivus
- † Ursirivus arlingtonanus
- † Ursirivus fannensis
- † Ursirivus fanninensis

V

Vaginulina
Valvulineria
- † Valvulineria asterigerinoides
Life restoration of the Late Triassic reptile Vancleavea
† Vancleavea
- † Vancleavea campi
† Vascellum
- † Vascellum elegans
- † Vascellum fortispirae
- † Vascellum leve
- † Vascellum magnum
- † Vascellum minusculum
- † Vascellum mundum
- † Vascellum mundum subteres
- † Vascellum pingue
- † Vascellum procerum
- † Vascellum rivanum
- † Vascellum robustum
- † Vascellum subleve
- † Vascellum tensum
- † Vascellum vascellum
- † Vascellum vascellum pressulum
- † Vascellum vascellum subornatum
- † Vascellum vianum
Fossilized shell of the Late Cretaceous ammonoid cephalopod Vascoceras
† Vascoceras
- † Vascoceras cauvini – or unidentified comparable form
- † Vascoceras proprium
- † Vascoceras silvanense
Venericardia
- † Venericardia uvaldana
† Veniella
- † Veniella conradi
- † Veniella lineata
† Vetericardiella
- † Vetericardiella crenalirata
- † Vetericardiella webbervillensis
† Vicarya
† Vinella
Shell of a Viviparus freshwater snail
Viviparus – tentative report
Volsella
- † Volsella alveolana
- † Volsella modesta
- † Volsella tarrantana
- † Volsella uddeni
† Volutomorpha
- † Volutomorpha aspera
- † Volutomorpha conradi
- † Volutomorpha graysonensis
- † Volutomorpha retifera
† Voysa
- † Voysa compacta
- † Voysa constricta
- † Voysa eulessana
- † Voysa lepida
- † Voysa minor
- † Voysa planolata
- † Voysa savoiana
- † Voysa speciosa
- † Voysa varia
- † Voysa varia extensa
- † Voysa varia levicostae
- † Voysa varia nodosa
Vulsella
- † Vulsella alveolana
- † Vulsella tarrantana

W

† Wadeopsammia
- † Wadeopsammia nodosa
Fossilized partial skulls of the Early Cretaceous crocodilian Wannchampsus
† Wannchampsus – type locality for genus
- † Wannchampsus kirpachi – type locality for species
† Wannia
- † Wannia scurriensis – type locality for species
† Washitaster
- † Washitaster longisulcus
† Weeksia
- † Weeksia lubbocki
† Woodbinax
- † Woodbinax texanus
† Woodbinesuchus – type locality for genus
- † Woodbinesuchus byersmauricei – type locality for species
† Worthoceras
- † Worthoceras gibbosum
- † Worthoceras vermiculum – or unidentified comparable form
† Wrightoceras
- † Wrightoceras munieri

X

Xanthosia
- † Xanthosia pawpawensis
- † Xanthosia reidi
- † Xanthosia wintoni
† Xenacanthus – report made of unidentified related form or using admittedly obsolete nomenclature
Xenophora
Life restoration of the Cretaceous bony fish Xiphactinus
† Xiphactinus
† Xylophagella
- † Xylophagella whitneyi

Y

† Yezoites
- † Yezoites subevolutus
Yoldia
- † Yoldia septariana
- † Yoldia subacuta

References

1 2 Albert Prieto-Márquez; Jonathan R. Wagner; Thomas Lehman (2019). "An unusual 'shovel-billed' dinosaur with trophic specializations from the early Campanian of Trans-Pecos Texas, and the ancestral hadrosaurian crest". Journal of Systematic Palaeontology. 18 (6): 461–498. doi:10.1080/14772019.2019.1625078. S2CID 202018197.
1 2 Kate A. Andrzejewski; Dale A. Winkler; Louis L. Jacobs (2019). "A new basal ornithopod (Dinosauria: Ornithischia) from the Early Cretaceous of Texas". PLOS ONE. 14 (3): e0207935. Bibcode:2019PLoSO..1407935A. doi: 10.1371/journal.pone.0207935 . PMC 6413910 . PMID 30860999.
1 2 Dirk Fuchs; Yasuhiro Iba; Alexander Heyng; Masaya Iijima; Christian Klug; Neal L. Larson; Günter Schweigert (2019). "The Muensterelloidea: phylogeny and character evolution of Mesozoic stem octopods". Papers in Palaeontology. 6: 31–92. doi:10.1002/spp2.1254. S2CID 198256507.
1 2 Christopher R. Noto; Stephanie K. Drumheller; Thomas L. Adams; Alan H. Turner (2019). "An enigmatic small neosuchian crocodyliform from the Woodbine Formation of Texas". The Anatomical Record. 303 (4): 801–812. doi: 10.1002/ar.24174 . PMID 31173481.
1 2 Thomas L. Adams (2019). "Small terrestrial crocodyliform from the Lower Cretaceous (late Aptian) of central Texas and its implications on the paleoecology of the Proctor Lake dinosaur locality". Journal of Vertebrate Paleontology. 39 (3): e1623226. doi:10.1080/02724634.2019.1623226. S2CID 198259867.
1 2 Kenshu Shimada (2019). "A new species and biology of the Late Cretaceous 'blunt-snouted' bony fish, Thryptodus (Actinopterygii: Tselfatiiformes), from the United States". Cretaceous Research. 101: 92–107. doi:10.1016/j.cretres.2019.04.011. S2CID 150291610.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[ddd.uab.cat-1] 1 2 Albert Prieto-Márquez; Jonathan R. Wagner; Thomas Lehman (2019). "An unusual 'shovel-billed' dinosaur with trophic specializations from the early Campanian of Trans-Pecos Texas, and the ancestral hadrosaurian crest". Journal of Systematic Palaeontology. 18 (6): 461–498. doi:10.1080/14772019.2019.1625078. S2CID 202018197.

[ReferenceA-2] 1 2 Kate A. Andrzejewski; Dale A. Winkler; Louis L. Jacobs (2019). "A new basal ornithopod (Dinosauria: Ornithischia) from the Early Cretaceous of Texas". PLOS ONE. 14 (3): e0207935. Bibcode:2019PLoSO..1407935A. doi: 10.1371/journal.pone.0207935 . PMC 6413910 . PMID 30860999.

[Engeseriteuthis-3] 1 2 Dirk Fuchs; Yasuhiro Iba; Alexander Heyng; Masaya Iijima; Christian Klug; Neal L. Larson; Günter Schweigert (2019). "The Muensterelloidea: phylogeny and character evolution of Mesozoic stem octopods". Papers in Palaeontology. 6: 31–92. doi:10.1002/spp2.1254. S2CID 198256507.

[An_enigmatic_small_neosuchian_croco-4] 1 2 Christopher R. Noto; Stephanie K. Drumheller; Thomas L. Adams; Alan H. Turner (2019). "An enigmatic small neosuchian crocodyliform from the Woodbine Formation of Texas". The Anatomical Record. 303 (4): 801–812. doi: 10.1002/ar.24174 . PMID 31173481.

[Thomas_L._Adams_2019_e1623226-5] 1 2 Thomas L. Adams (2019). "Small terrestrial crocodyliform from the Lower Cretaceous (late Aptian) of central Texas and its implications on the paleoecology of the Proctor Lake dinosaur locality". Journal of Vertebrate Paleontology. 39 (3): e1623226. doi:10.1080/02724634.2019.1623226. S2CID 198259867.

[shimada-2019-6] 1 2 Kenshu Shimada (2019). "A new species and biology of the Late Cretaceous 'blunt-snouted' bony fish, Thryptodus (Actinopterygii: Tselfatiiformes), from the United States". Cretaceous Research. 101: 92–107. doi:10.1016/j.cretres.2019.04.011. S2CID 150291610.

[1]

[2]

[3]

[4]

[5]

[6]

List of the Mesozoic life of Texas

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

References