List of the Paleozoic life of Wyoming

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 541 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
  • †Cyclendoceras
  • †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

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