List of the Paleozoic life of Wyoming

• †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 • †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 • †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 • †Burnetia'' • †Burnetia alta – or unidentified comparable form • †Bynumia ==C==

• †Calapoecia • †Calapoecia coxi • †Calcisphaera • †Calcisphaera laevis • †Calcisphaera pachysphaerica • †Camaraspis • †Camaraspis convexa • †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 • †Catenipora'' • †Catenipora robusta • †Cavellina • †Cavellina bransoni • †Cavusgnathus • †Cavusgnathus unicornis • †Cedaria • †Cedarina • †Celtoides – type locality for genus • †Celtoides unioniformis – type locality for species • †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 • †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 • †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 • †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 • 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 • †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 • †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 • †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==

• †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 • †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 • †Glikmanius'' • †Glikmanius occidentalis • †Globivalvulina • †Globivalvulina bulloides – or unidentified loosely related form • †Globoendothyra • †Glyphaspis • †Glyphaspis tetonensis • †Glyptopleura • †Glyptopleura multicostata • †Gnamptorhynchos • †Gnamptorhynchos prayi • †Goniasma – tentative report • †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 • †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 • †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==

• (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 • †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 • †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 • †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 • †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 • †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 • †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 • †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 • †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 • 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 • †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 • †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 • 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 • †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 • †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 • †Tricrepicephalus'' • †Tricrepicephalus coria • †Triticites • †Triticites ventricosus • †Tuberitina • †Turbinatocanina • †Turbinatocaninia – tentative report ==U==

• †Uncaspis • †Uncaspis limbata • †Uranolophus'' • †Uranolophus wyomingense ==V==