List of the Paleozoic life of Wyoming

Last updated February 13, 2024

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

A

† Acanthopecten
- † Acanthopecten alatus
- † Acanthopecten coloradoensis
- † Acanthopecten delawarensis – or unidentified comparable form
† Acanthoscorpio – type locality for genus
- † Acanthoscorpio mucronatus – type locality for species
† Acanthracospirifer
- † Acanthracospirifer occiduus – tentative report
- † Acanthracospirifer shawi
† Acondylacanthus
- † Acondylacanthus browni – type locality for species
† Acontiodus
† Acratia – tentative report
- † Acratia disjuncta
† Actinoceras
† Actinocoelia
- † Actinocoelia maeandrina
† Acuticarpus
- † Acuticarpus delticus
- † Acuticarpus republicensis – type locality for species
† Adetognathodus
- † Adetognathodus gigantea – or unidentified comparable form
† Agassizodus
- † Agassizodus variabilis
† Agnostogonus
- † Agnostogonus incognitus – or unidentified comparable form
† Allocryptaspis
- † Allocryptaspis ellipticus
- † Allocryptaspis flabelliformis
† Allumettoceras
† Alokistocare
† Amphiscapha
- † Amphiscapha calix – type locality for species
† Amphissites
- † Amphissites robertsi
† Amplexus
† Ananias
- † Ananias nevadensis – or unidentified related form
† Anarthraspis
- † Anarthraspis chamberlini
- † Anarthraspis montanus
† Ancistriodus
- † Ancistriodus multisectus
† Anematina
† Angulotreta
† Anidanthus
† Ankoura
† Anthracospirifer
- † Anthracospirifer curvilateralis
- † Anthracospirifer occidus
- † Anthracospirifer occiduus
- † Anthracospirifer rawlinsensis
- † Anthracospirifer shawi
- † Anthracospirifer welleri
† Antiquatonia
- † Antiquatonia coloradoensis – or unidentified comparable form
- † Antiquatonia sulcatus – or unidentified comparable form
† Antracospirifer
- † Antracospirifer occidus
- † Antracospirifer rawlinsensis
- † Antracospirifer shawi
- † Antracospirifer welleri
† Apachella
- † Apachella boydi – type locality for species
- † Apachella capertoni
- † Apachella franciscana
- † Apachella pseudostrigillata
- † Apachella turbiniformis
† Aphanaia
- † Aphanaia erectum – type locality for species
† Aphelaspis
- † Aphelaspis walcotti
† Apiculatisporites
- † Apiculatisporites microconus
† Apiculiretusispora
- † Apiculiretusispora plicata
- † Apiculiretusispora spicula
† Arapahoia
† Archaediscus
- † Archaediscus krestovnikovi – or unidentified loosely related form
† Archaeocidaris
† Arctacanthus
- † Arctacanthus wyomingensis – type locality for species
† Asphaltina
† Astartella
- † Astartella aueri – type locality for species
- † Astartella concentrica
† Asteroarchaediscus
- † Asteroarchaediscus bachkiricus
Life restoration of the Middle-Late Ordovician jawless fish Astraspis
† Astraspis
- † Astraspis desiderata
† Aviculopecten
- † Aviculopecten basilicus – or unidentified comparable form
- † Aviculopecten girtyi
- † Aviculopecten gravidus
- † Aviculopecten gryphus
- † Aviculopecten kaibabensis – or unidentified comparable form
† Aviculopinna

B

† Babylonites
Bairdia
- † Bairdia contracta
- † Bairdia delicata
- † Bairdia nasuta
† Bakevellia – tentative report
† Balantoides
- † Balantoides quadrilobatus
† Baltagnostus
- † Baltagnostus wyomingensis – type locality for species
† Barytichisma
- † Barytichisma amsdenense
† Batacanthus
- † Batacanthus gigas – type locality for species
† Bathymyonia
- † Bathymyonia nevadensis
† Batostoma
† Bayfieldia
- † Bayfieldia bindosa
- † Bayfieldia simata – or unidentified comparable form
† Baylea
- † Baylea delawarensis
Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon
† Bellerophon
- † Bellerophon deflectus – or unidentified comparable form
† Belodus
† Bighornia
- † Bighornia parva
- † Bighornia patella
† Billingsella
- † Billingsella perfecta
† Biseriella
- † Biseriella moderata
- † Biseriella parva
† Blountia
- † Blountia cora
- † Blountia janei
† Blountiella
- † Blountiella alberta
† Bolaspidella
† Borestus
† Bowmania
- † Bowmania pennsylvania
† Brachythyrina
- † Brachythyrina washakiensis
† Bradyina – tentative report
† Branchioscorpio – type locality for genus
- † Branchioscorpio richardsoni – type locality for species
† Briscoia
† Broeggeria – tentative report
- † Broeggeria strobiliformis
† Broggeria – tentative report
- † Broggeria strobiliformis – type locality for species
† Bryantodina
† Bryantolepis
- † Bryantolepis brachycephalus
- † Bryantolepis cristatus
- † Bryantolepis major
- † Bryantolepis obscurus
† Bucheria – type locality for genus
- † Bucheria ovata – type locality for species
† Bulbocanthus
- † Bulbocanthus rugosus
Restorative portrait of the Permian synapsid (mammal prescursor) Burnetia
† Burnetia
- † Burnetia alta – or unidentified comparable form
† Bynumia

C

† Calapoecia
- † Calapoecia coxi
† Calcisphaera
- † Calcisphaera laevis
- † Calcisphaera pachysphaerica
† Camaraspis
- † Camaraspis convexa
Life restoration of the Carboniferous Chimaera relative
† Campodus
† Camptonectes – tentative report
† Cancrinella
- † Cancrinella phosphatica
† Caneyella
† Caninia
- † Caninia nevadensis
† Cardipeltis
- † Cardipeltis bryanti
- † Cardipeltis richardsoni
- † Cardipeltis wallacii
† Carlinia
- † Carlinia amsdeniana
† Cassianoides
- † Cassianoides sexcostatus – type locality for species
Fossil of the Ordovician-Silurian tabulate coral Catenipora
† Catenipora
- † Catenipora robusta
† Cavellina
- † Cavellina bransoni
† Cavusgnathus
- † Cavusgnathus unicornis
† Cedaria
† Cedarina
† Celtoides – type locality for genus
- † Celtoides unioniformis – type locality for species
Life restoration of the Early Devonian jawless fish Cephalaspis
† Cephalaspis
- † Cephalaspis wyomingense
† Ceraunocochlis
† Chaetetes
- † Chaetetes eximius – or unidentified comparable form
- † Chaetetes wyomingensis
† Charactoceras – tentative report
† Cheilocephalus
- † Cheilocephalus delandi
† Chirognathus
- † Chirognathus alternata
- † Chirognathus curvidens
- † Chirognathus delicatulus
- † Chirognathus monodactyla
- † Chirognathus multidens
- † Chirognathus reversa
- † Chirognathus tenuidentatus
- † Chirognathus unguliformis
† Chonetes
† Cibecuia
- † Cibecuia gouldii – or unidentified comparable form
† Cinclidonema
- † Cinclidonema clausepeakensis – type locality for species
Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina
† Cleiothyridina
- † Cleiothyridina atrypoides
- † Cleiothyridina elegans – or unidentified related form
- † Cleiothyridina hirsuta
- † Cleiothyridina sublamellosa – or unidentified related form
† Clelandia
- † Clelandia typicalis
† Cliffa
- † Cliffa lataegenae
† Cliffia
- † Cliffia lataegenae
† Climacammina
† Coelogasteroceras
- † Coelogasteroceras mexicanum
- † Coelogasteroceras thomasi – type locality for species
† Coleodus
- † Coleodus simplex
† Colpites
Fossilized shell of the Late Devonian-Permian brachiopod Composita
† Composita
- † Composita elongata
- † Composita laevis – or unidentified related form
- † Composita mira
- † Composita ovata
- † Composita poposiensis
- † Composita sigma
- † Composita subquadrata
- † Composita subtilita
- † Composita sulcata
† Conocardium
† Coosella
† Coosia
- † Coosia alethes
† Coosina
- † Coosina ariston
† Cordylodus
- † Cordylodus concinnus – tentative report
Cornuspira
† Crassidonta
- † Crassidonta stuckenbergi
† Crepicephalus
- † Crepicephalus auratus
- † Crepicephalus buttsimontanaensis
- † Crepicephalus rectus
† Crurithyris
- † Crurithyris arcuata
- † Crurithyris arcuatus
Fossil of the Carboniferous shark Ctenacanthus
† Ctenacanthus
- † Ctenacanthus amblyxiphias
- † Ctenacanthus mutabilis – type locality for species
- † Ctenacanthus obscuracostatus – type locality for species
† Ctenalosia
- † Ctenalosia transversa – type locality for species
† Cuffeyella
- † Cuffeyella arachnoidea
† Cupulocrinus
- † Cupulocrinus latibrachiatus – or unidentified comparable form
† Cyclites
- † Cyclites depressus – or unidentified comparable form
† Cyclospira – tentative report
- † Cyclospira anticostiana
† Cymbosporites
- † Cymbosporites proteus
- † Cymbosporites senex
† Cypricardella – tentative report
† Cyrtogomphoceras
† Cyrtoniodus
- † Cyrtoniodus complicatus
- † Cyrtoniodus erectus
† Cyrtorostra
- † Cyrtorostra varicostata – type locality for species
Cytherella – report made of unidentified related form or using admittedly obsolete nomenclature
- † Cytherella benniei
† Cytogomphoceras

D

† Deckera
- † Deckera completa – or unidentified comparable form
† Delaria
- † Delaria sevilloidia – type locality for species
† Della
- † Della suada
† Deltodus
- † Deltodus mercurei
† Dendrocrinus
† Densonella
Shell of a Dentalium tusk shell
† Dentalium
† Derbyia
- † Derbyia magna
- † Derbyia robusta – or unidentified comparable form
† Diaphragmus
- † Diaphragmus nivosus
† Dibolisporites
- † Dibolisporites abitibiensis
- † Dibolisporites eifeliensis
- † Dibolisporites wetteldorfensis
† Dicellomus
- † Dicellomus amblia
† Diceromyonia
- † Diceromyonia storeya
† Dictyonina
† Dictyotomaria
- † Dictyotomaria carlbransoni – type locality for species
† Dielasma
- † Dielasma fabiforme – type locality for species
† Diestoceras
† Dimorphosiphon
- † Dimorphosiphon talbotorum
† Dinorthis
- † Dinorthis occidentalis
† Diplosphaerina
† Distichophytum
- † Distichophytum ovatum
† Dokimocephalus
† Donaldina
- † Donaldina pygmaea – or unidentified related form
† Donaldospira
- † Donaldospira geminocarinata
† Drepanodos
Fossilized foliage from the Early-Late Devonian club moss relative Drepanophycus
† Drepanophycus
- † Drepanophycus devonicus
† Duncanopora
- † Duncanopora duncanae
† Dysoristus
- † Dysoristus lochmanae

E

† Earlandia
- † Earlandia clavatula
- † Earlandia elegans
† Echinauris
- † Echinauris magna
† Echinoconchus
† Ectenocrinus
† Ectodemites
- † Ectodemites warei
† Edmondia
- † Edmondia gibbosa
- † Edmondia phosphatica
- † Edmondia phosphoriensis – or unidentified comparable form
- † Edmondia stuchburia
† Eirlysia
- † Eirlysia reticulata – or unidentified comparable form
† Elvinia
- † Elvinia roemeri
† Emphanisporites
- † Emphanisporites micrornatus
- † Emphanisporites rotatus
Fossilized shells and restored appearances of the Middle-Late Ordovician nautiloid cephalopod Endoceras
† Endoceras
† Endothyra
- † Endothyra bowmani – or unidentified loosely related form
- † Endothyra excellens
- † Endothyra prisca – or unidentified loosely related form
- † Endothyra similis – or unidentified loosely related form
† Endothyranella
† Eoastarte – type locality for genus
- † Eoastarte subcircularis – type locality for species
† Eocamptonectes
- † Eocamptonectes sculptilis
† Eochonetes
- † Eochonetes maearum – type locality for species
† Eoorthis
- † Eoorthis remnicha
† Eoschubertella
† Eostaffella
- † Eostaffella acutissima – or unidentified loosely related form
- † Eostaffella circuli
- † Eostaffella pseudostruvei – or unidentified loosely related form
† Eostaffellina
- † Eostaffellina paraprotvae
† Eotuberitina
† Ephippiorthoceras
† Eriptychius
- † Eriptychius americanus
† Erismodus
- † Erismodus abbreviatus
- † Erismodus typus
† Eumetria
- † Eumetria sulcata
† Eunemacanthus
- † Eunemacanthus keytei
Fossilized shell of the Silurian-Permian sea snail Euomphalus
† Euomphalus
- † Euomphalus plummeri – or unidentified related form
† Euphemites
- † Euphemites crenulatus
- † Euphemites fremontensis – type locality for species
- † Euphemites luxuriosus
- † Euphemites sacajawensis
- † Euphemites sparciliratus
† Euphemitopsis
- † Euphemitopsis multinodosa
- † Euphemitopsis subpapillosa
† Eurekia

F

Fossil of the Late Ordovician-Permian tabulate coral Favosites
† Favosites
- † Favosites prolificus – or unidentified comparable form
† Flexaria – tentative report
† Foerstephyllum
† Fransonia
- † Fransonia wyomingensis

G

† Gallatinospongia – type locality for genus
- † Gallatinospongia conica – type locality for species
† Gastrioceras – report made of unidentified related form or using admittedly obsolete nomenclature
- † Gastrioceras williamsi – type locality for species
† Genevievella
Fossil of the Early-Late Ordovician trilobite Geragnostus
† Geragnostus
- † Geragnostus insoltus
† Girtyella
- † Girtyella indianensis – or unidentified comparable form
† Girtypecten
- † Girtypecten sublaqueatus
† Girtyspira
† Girvanella
† Glabrocingulum
- † Glabrocingulum alveozonum
- † Glabrocingulum coronatum
- † Glabrocingulum texanum
† Glaphyraspis
- † Glaphyraspis occidentalis
Life restoration of the Carboniferous shark Glikmanius
† Glikmanius
- † Glikmanius occidentalis
† Globivalvulina
- † Globivalvulina bulloides – or unidentified loosely related form
† Globoendothyra
† Glyphaspis
- † Glyphaspis tetonensis
† Glyptopleura
- † Glyptopleura multicostata
† Gnamptorhynchos
- † Gnamptorhynchos prayi
† Goniasma – tentative report
Fossilized shell of the Late Devonian-Late Triassic ammonoid cephalopod Goniatites
† Goniatites – tentative report
† Goniophora – tentative report
† Gosseletina
- † Gosseletina idahoensis – type locality for species
- † Gosseletina permiana
† Gosslingia
- † Gosslingia americana
† Grandispora
- † Grandispora biornata – tentative report
- † Grandispora douglastownense
- † Grandispora macrotuberculata – tentative report
- † Grandispora micronata
† Guizhoupecten
- † Guizhoupecten cheni
- † Guizhoupecten tubicostata – type locality for species

H

† Hadragnostus
- † Hadragnostus modestus
† Hamatus
- † Hamatus phosphoriensis
† Healdia
- † Healdia ornata
† Helemacanthus
- † Helemacanthus incurvus
† Helicelasma
- † Helicelasma selectum
Life restoration of the Permian Chimaera relative Helicoprion
† Helicoprion
- † Helicoprion davisii
† Helodus
- † Helodus rugosus
- † Helodus subpolitus – type locality for species
† Heslerodus
- † Heslerodus divergens
† Hesperorthis
- † Hesperorthis pyramidalis – or unidentified comparable form
† Heteropecten
- † Heteropecten vanvleeti – or unidentified comparable form
† Hibbardella
† Hiscobeccus
- † Hiscobeccus gigas
† Holcacephalus
- † Holcacephalus tenerus
† Hollina
- † Hollina occidentalis
† Hollinella
- † Hollinella typica
† Holophragma – report made of unidentified related form or using admittedly obsolete nomenclature
† Homagnostus
† Hormotoma
† Hostimella
† Housia
† Hustedia
- † Hustedia phosphoriensis
† Hydroscorpius – type locality for genus
- † Hydroscorpius denisoni – type locality for species
Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha
† Hyolithes
- † Hyolithes primordialis
† Hypergonia
- † Hypergonia percostata
† Hypseloconus
- † Hypseloconus simplex
† Hypsiptycha
- † Hypsiptycha anticostiense
- † Hypsiptycha anticostiensis
- † Hypsiptycha neenah – or unidentified comparable form
† Hystriculina

I

† Ianthinopsis
† Idiognathoides
- † Idiognathoides corrugata
- † Idiognathoides sinuata
† Illaenurus
- † Illaenurus priscus
† Incrustatospongia – type locality for genus
- † Incrustatospongia superficiala – type locality for species
† Inflatia
- † Inflatia lovei
† Ithyektyphus
- † Ithyektyphus tetonensis

J

Restoration of the Carboniferous-Permian ray-like cartilaginous fish Janassa (top and left)
† Janassa
- † Janassa angularis
- † Janassa unguicula
- † Janassa unguiformis
† Jonesina
- † Jonesina carbonifera
† Josina – type locality for genus
- † Josina festiva – type locality for species
† Juresania

K

† Kaibabella
- † Kaibabella basilica – type locality for species
Fossil of the Cambrian trilobite Kendallina
† Kendallina
- † Kendallina eryon
† Kingstonia
- † Kingstonia walcotti
† Kionoceras
† Kochoceras
† Komiella
- † Komiella ostiolata
† Kormagnostus
- † Kormagnostus seclusus
† Kyphocephalus

L

† Lambeoceras
† Lamellospira
- † Lamellospira alveozona – type locality for species
† Lampraspis
- † Lampraspis tuberculata
Fossils of the Middle Devonian clubmoss Leclercqia
† Leclercqia
- † Leclercqia complexa
† Leiorhynchus
- † Leiorhynchus weeksi
† Lepidocyclus
† Leptochondria
- † Leptochondria curtocardinalis – type locality for species
† Leptodesma
† Levizygopleura
- † Levizygopleura inornata – or unidentified comparable form
† Limipecten – tentative report
† Linglella
- † Linglella modesta
† Lingula
- † Lingula carbonaria
Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella
† Lingulella
- † Lingulella modesta
† Linnarssonella
- † Linnarssonella girtyi
- † Linnarssonella girtyyi
† Linoproductus
- † Linoproductus eastoni
- † Linoproductus planiventralis
† Liosotella – tentative report
† Lipinella
† Liroceras
† Lobocorallium
- † Lobocorallium trilobatum
† Lonchocephalus
† Lonchodus
† Lyroschizodus
- † Lyroschizodus oklahomensis – or unidentified comparable form

M

† Machaeracanthus
- † Machaeracanthus minor
† Maclurina
- † Maclurina manitobensis
† Maclurites
† Macrostylocrinus
- † Macrostylocrinus wyomingensis – type locality for species
† Marginifera
- † Marginifera haydenensis
† Maryvillia
† Meekella
- † Meekella attenuata
† Meekopinna
- † Meekopinna sagitta
† Meekospira
† Megamyonia
- † Megamyonia nitens
† Meniscocoryphe
- † Meniscocoryphe platycephala
† Meniscocryphe
- † Meniscocryphe platycephala
† Mesolobus
Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras
† Metacoceras
- † Metacoceras knighti – type locality for species
- † Metacoceras sulciferum – type locality for species
† Meteoraspis
† Microcoelodus
- † Microcoelodus breviconus
- † Microcoelodus unicornis
† Microdoma – tentative report
† Micromitra
- † Micromitra modesta
† Millerella
- † Millerella pressa
- † Millerella pura – or unidentified related form
† Miltonella
- † Miltonella shupei
† Minicephalus – type locality for genus
- † Minicephalus primus – type locality for species
† Modocia
† Monocheilus
- † Monocheilus truncatus
† Mooreoceras – tentative report
† Mourlonia
† Multithecopora
- † Multithecopora amsdenensis
† Myalina
- † Myalina aviculoides
- † Myalina sinuata – type locality for species
- † Myalina wyomingensis

N

† Nahannagnostus
- † Nahannagnostus nganasanicus
† Nasutimena
- † Nasutimena fluctuosa
Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis
† Naticopsis
- † Naticopsis judithae
- † Naticopsis kaibabensis
- † Naticopsis marthaae – or unidentified comparable form
† Natiria
- † Natiria americana
† Neoarchaediscus
- † Neoarchaediscus incertus
- † Neoarchaediscus parvus
† Neocoleodus
- † Neocoleodus spicatus
† Neokoninckophylllum
- † Neokoninckophylllum inconstans
† Neokoninckophyllum
- † Neokoninckophyllum hamatilis
Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer
† Neospirifer
- † Neospirifer bakeri
† Nixonella
Nucula – tentative report
† Nuculopsis
- † Nuculopsis montpelierensis
- † Nuculopsis poposiensis – type locality for species
- † Nuculopsis pulchra
† Nuferella – tentative report
- † Nuferella puncta

O

† Obliquipecten
† Ocnerorthis
- † Ocnerorthis cooperi
† Oepikina
- † Oepikina pergibbosa – or unidentified comparable form
† Oistodus
- † Oistodus curvatus
Fossil of the Cambrian trilobite Olenoides
† Olenoides
- † Olenoides incertus – or unidentified comparable form
† Onchus
- † Onchus penetrans
- † Onchus peracutus
† Orbiculoidea
- † Orbiculoidea missouriensis
- † Orbiculoidea utahensis
- † Orbiculoidea wyomingensis
† Oreaspis
- † Oreaspis ampla
- † Oreaspis dunklei
- † Oreaspis williamsi
† Oriocrassatella
- † Oriocrassatella elongata – type locality for species
† Orthonema
† Orthotetes
- † Orthotetes kaskaskiensis
† Orthothetina
- † Orthothetina amsdenensis
† Otusia
† Ovatia
- † Ovatia croneisi
- † Ovatia muralis
† Ozarkodina

P

† Paladin
- † Paladin moorei
† Palaeoneilo
- † Palaeoneilo mcchesneyana
† Palaeonubecularia – or unidentified comparable form
† Palaeophyllum
- † Palaeophyllum gracile
- † Palaeophyllum humei
† Palaeotextularia
- † Palaeotextularia consobrina – or unidentified loosely related form
- † Palaeotextularia longiseptata – or unidentified loosely related form
† Paleocuticularia – type locality for genus
- † Paleocuticularia perforata – type locality for species
† Paleofavosites
- † Paleofavosites prayi
† Paleyoldia
- † Paleyoldia amsdenensis
† Paltodus
† Parabolinoides
- † Parabolinoides expansus
† Paracedaria
† Paracedarina
† Paractinoceras
† Parajuresania
- † Parajuresania nebrascensis
† Parallelodon
- † Parallelodon multistriatus – or unidentified comparable form
† Paraschizodus – type locality for genus
- † Paraschizodus elongatus – type locality for species
† Paraspiriferina
- † Paraspiriferina formulosa – type locality for species
† Parehmania
- † Parehmania inornata
† Peripetoceras
† Permophorus
- † Permophorus albequus
- † Permophorus pricei – type locality for species
† Pernopecten
† Petrocrania
† Pharkidonotus
- † Pharkidonotus altitropis – type locality for species
† Phestia
- † Phestia perumbonata
† Pimmacanthus
- † Pimmacanthus inequistriatus
† Plaesiomys
- † Plaesiomys rockymontana – or unidentified related form
† Plagioglypta
† Planoendothyra
† Planospirodiscus
† Platyceras
- † Platyceras yochelsoni – type locality for species
Fossilized shell of the Middle Ordovician-Silurian brachiopod Platystrophia
† Platystrophia
- † Platystrophia equiconvexa
† Plethopletis
- † Plethopletis arbucklensis
† Pleurosiphonella
- † Pleurosiphonella drummondi
† Polidevcia
- † Polidevcia bellistriata
- † Polidevcia obesa
† Polycaulodus
- † Polycaulodus bidentatus
† Posidonia
† Praearcturus
† Proagnostus – or unidentified comparable form
† Procostatoria
- † Procostatoria sexradiata
† Prodentalium
- † Prodentalium canna
† Protaspis
- † Protaspis brevispina
- † Protaspis mcgrewi
- † Protaspis ovata
- † Protaspis sculpta
- † Protaspis transversa
† Prototreta
† Pseudagnostus
- † Pseudagnostus douvillei
- † Pseudagnostus prolongus – or unidentified comparable form
† Pseudobythocypris – tentative report
- † Pseudobythocypris amsdenensis
† Pseudoendothyra
- † Pseudoendothyra kremenskensis – or unidentified loosely related form
† Pseudogastrioceras
† Pseudoglomospira
† Pseudomatthevia
- † Pseudomatthevia conica
Fossilized shell of a Pseudomelania sea snail
† Pseudomelania – tentative report
† Pseudomonotis
- † Pseudomonotis likharevi
† Pseudorthoceras
- † Pseudorthoceras knoxense
† Pseudovidrioceras
- † Pseudovidrioceras girtyi
† Pseudozygopleura
- † Pseudozygopleura croneisi
- † Pseudozygopleura girtyi – or unidentified comparable form
† Psilophyton
- † Psilophyton wyomingense – type locality for species
† Pterocephalia
- † Pterocephalia bridgei
† Pteroconus
- † Pteroconus gracilis
† Pugnoides
- † Pugnoides quinqeuplecis
- † Pugnoides quinqueplecis
† Pulsia
- † Pulsia delira

R

† Rawlinsella
† Renalcis
Restoration of the Early Devonian primitive vascular plant Renalia
† Renalia
- † Renalia dorfii – type locality for species
† Reticulariina
- † Reticulariina browni
† Reticulatia
- † Reticulatia americana
† Retispira
- † Retispira fragilis
- † Retispira modesta
- † Retispira tenuilineata – or unidentified loosely related form
- † Retispira textiliformis
† Retusotriletes
- † Retusotriletes actinomorphus
- † Retusotriletes dubiosus
- † Retusotriletes simplex
- † Retusotriletes warringtonii
† Rhynchotrema
- † Rhynchotrema iowense
† Rhynoleichus
- † Rhynoleichus weeksi
† Rugomena
- † Rugomena planocorrugata

S

† Sallya
- † Sallya linsa
† Sanguinolites
† Sansabella
- † Sansabella reversa
† Sargentina – tentative report
- † Sargentina amsdenensis
Fossil of the Cambrian-Ordovician trilobite Saukiella
† Saukiella
- † Saukiella pyrene
† Sawdonia
- † Sawdonia wyomingense – type locality for species
† Scapallina
- † Scapallina phosphoriensis
† Scaphellina
- † Scaphellina concinna – type locality for species
† Sceptropora
- † Sceptropora facula – or unidentified comparable form
† Schizodus
- † Schizodus affinis – or unidentified related form
- † Schizodus alpinus
- † Schizodus altus – type locality for species
- † Schizodus bifidus
- † Schizodus canalis
- † Schizodus depressus – or unidentified comparable form
- † Schizodus ferrieri
- † Schizodus subovatus
- † Schizodus wheeleri – or unidentified comparable form
- † Schizodus wyomingensis – type locality for species
† Schizophoria
- † Schizophoria depressa
- † Schizophoria texana – or unidentified comparable form
† Schuchertella
- † Schuchertella poposiensis – or unidentified comparable form
† Scoloconcha
- † Scoloconcha globosa
† Sedgewickia – tentative report
† Semicircularea
- † Semicircularea arcuata
† Shansiella
† Shedhornia – type locality for genus
- † Shedhornia ornata – type locality for species
† Shishaella
- † Shishaella moreyi
Modern specimen of the marine bivalve Solemya
Solemya
† Soleniscus
- † Soleniscus altonensis – or unidentified related form
- † Soleniscus primogenius
- † Soleniscus typicus
† Solenochilus
- † Solenochilus brammeri – or unidentified comparable form
† Sphenalosia – type locality for genus
- † Sphenalosia smedleyi – type locality for species
† Sphenosteges
- † Sphenosteges hispidus
† Sphondylophyton
- † Sphondylophyton hyenioides
Fossilized shell and lophophore of the Silurian-Middle Jurassic brachiopod Spiriferina
† Spiriferina
- † Spiriferina kentuckensis – or unidentified comparable form
† Spyroceras
† Stacheia
† Stacheoides
† Stearoceras
- † Stearoceras phosphoriense
† Stegocoelia
† Stenolobulites
- † Stenolobulites simulator
† Stenopilus
- † Stenopilus glaber
† Stenopoceras
- † Stenopoceras abundum – type locality for species
† Steroconus
- † Steroconus gracilis
- † Steroconus plenus
- † Steroconus robustus
† Straparollus
† Streblopteria
- † Streblopteria montpelierensis
† Streplopteria
† Streptelasma
- † Streptelasma trilobatum
† Streptognathodus
- † Streptognathodus parvus
† Streptognathus
† Strobeus
- † Strobeus intercalaris – or unidentified comparable form
- † Strobeus paludinaeformis – or unidentified comparable form
Fossilized shell of the Ordovician-Silurian brachiopod Strophomena
† Strophomena
† Strophostylus
† Stutchburia
† Syspacheilus

T

† Taenicephalus
- † Taenicephalus shumardi
† Tainoceras
- † Tainoceras wyomingense – type locality for species
† Talbotina
† Tapinotomaria – tentative report
† Tatonkacystis – type locality for genus
- † Tatonkacystis codyensis – type locality for species
† Tetrataxis
† Timaniella
- † Timaniella pseudocamerata
† Torynifer
- † Torynifer setiger
† Trachelocrinus
- † Trachelocrinus resseri
† Tracheolcrinas – tentative report
† Trachydomia – tentative report
† Trepeilopsis
† Triarthropsis
- † Triarthropsis nitida – or unidentified comparable form
Fossil of the Cambrian trilobite Tricrepicephalus
† Tricrepicephalus
- † Tricrepicephalus coria
† Triticites
- † Triticites ventricosus
† Tuberitina
† Turbinatocanina
† Turbinatocaninia – tentative report

U

† Uncaspis
- † Uncaspis limbata
Fossilized jaws of the Late Devonian lungfish Uranolophus
† Uranolophus
- † Uranolophus wyomingense

V

† Virgaspongiella – type locality for genus
- † Virgaspongiella ramosa – type locality for species
† Vnigripecten
- † Vnigripecten phosphaticus – type locality for species
† Volvotextularia

W

† Waagenella
- † Waagenella crassus – or unidentified comparable form
† Warthia
- † Warthia fissus
- † Warthia waageni – or unidentified comparable form
† Wellerella
- † Wellerella osagensis – or unidentified comparable form
† Westonoceras
† Whitfieldoceras
† Wilkingia
- † Wilkingia terminalis
- † Wilkingia wyomingensis – type locality for species
† Wilsonoceras
† Winnipegoceras
† Worthenia
- † Worthenia corrugata

X

† Xestotrema
- † Xestotrema pulchrum

Y

† Yakovlevia
- † Yakovlevia multistriatus
† Yochelsonellisa
- † Yochelsonellisa eximia
† Yunnania – tentative report

Z

† Zaphrentites – tentative report
† Zellerina
- † Zellerina discoidea
† Zygospira
- † Zygospira aequivalvis

References

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

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List of the Paleozoic life of Wyoming

Contents

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

U

V

W

X

Y

Z

References