Vascoceratidae
Turrilitidae
Hypoturrilites tuberculatus
Mariella davisense
Ostlingoceras brandi
Turrilites acutus
Turrilites brazoensis
Turrilites dearingi
Sphenodiscidae
Schloenbachiidae
Scaphitidae
Clioscaphites choteauensis
Clioscaphites montanensis
Clioscaphites vermiformis
Desmoscaphites bassleri
Desmoscaphites erdmanni
Discoscaphites abyssinus
Discoscaphites conradi
Discoscaphites gulosus
Discoscaphites nebrascensis
Discoscaphites rossi
Haresiceras placentiforme
Hoploscaphites birkelundi
Hoploscaphites brevis
Hoploscaphites cheyennensis
Hoploscaphites comprimus
Hoploscaphites dorfi
Hoploscaphites gilberti
Hoploscaphites melloi
Hoploscaphites nebrascensis
Hoploscaphites nicolletii
Hoploscaphites nodosus
Hoploscaphites plenus
Hoploscaphites sargklofak
Hoploscaphites spedeni
Jeletzkytes dorfi
Jeletzkytes nebrascensis
Jeletzkytes spedeni
Scaphites arcadiensis
Scaphites carlilensis
Scaphites ferronensis
Scaphites hattini
Scaphites hippocrepis
Scaphites inflexus
Scaphites kansiensis
Scaphites leei
Scaphites mariasensis
Scaphites mitchellensis
Scaphites nigricollensis
Scaphites patulus
Scaphites preventricosus
Scaphites pygmaeus
Scaphites ventricosus
Scaphites warreni
Scaphites whitfieldi
Trachyscaphites densicostatus
Worthoceras vermiculum
Placenticeratidae
Placenticeras adkinsi
Placenticeras intercalare
Placenticeras meeki
Placenticeras placenta
Placenticeras planum
Placenticeras pseudoplacenta
Placenticeras whitfieldi
Proplacenticeras pseudoplacenta
Pachydiscidae
Nostoceratidae
Cirroceras reevesi
Didymoceras beecheri
Didymoceras cheyennense
Didymoceras cochleatum
Didymoceras nebrascense
Didymoceras stevensoni
Emperoceras beecheri
Exiteloceras jenneyi
Nautilidae
Munierceratidae
Muensterellidae
Hamitidae
Gaudryceratidae
Forbesiceratidae
Engonoceratidae
Dipoloceratidae
Desmoceratidae
Collignoniceratidae
Collignoniceras hyatti
Collignoniceras praecox
Collignoniceras woollgari
Menabites belli
Prionocyclus hyatti
Prionocyclus macombi
Prionocyclus wyomingensis
Texanites shiloensis
Coilopoceratidae
Brancoceratidae
Binneyitidae
Belemnitellidae
Baculitidae
Baculites asper
Baculites asperformis
Baculites baculus
Baculites calamus
Baculites claviformis
Baculites clinolobatus
Baculites codyensis
Baculites compressus
Baculites cuneatus
Baculites eliasi
Baculites grandis
Baculites gregoryensis
Baculites haresi
Baculites jenseni
Baculites meeki
Baculites obtusus
Baculites ovatus
Baculites perplexus
Baculites pseudovatus
Baculites reduncus
Baculites reesidei
Baculites scotti
Baculites yokoyamai
Sciponoceras gracile
Anisoceratidae
Acanthoceratidae
Acanthoceras adkinsi
Acanthoceras amphibolum
Acanthoceras barcusi
Acanthoceras bellense
Acanthoceras cuspidum
Acanthoceras eulessanum
Acanthoceras granerosense
Acanthoceras hazzardi
Acanthoceras muldoonense
Acanthoceras tarrantense
Acanthoceras tarrantense nitidum
Acanthoceras wintoni
Burroceras clydense
Calycoceras canitaurinum
Calycoceras naviculare
Conlinoceras tarrantense
Cunningtoniceras inerme
Cunningtoniceras johnsonanum
Cunningtoniceras lonsdalei
Dunveganoceras pondi
Dunveganoceras problematicum
Eucalycoceras dentonense
Kanabiceras kanabense
Mammites bellsanus
Mammites nodosoides
Metoicoceras crassicostae
Metoicoceras frontierense
Metoicoceras geslinianum
Metoicoceras latoventer
Metoicoceras mosbyense
Metoicoceras ornatum
Metoicoceras praecox
Metoicoceras swallovi
Metoicoceras swallovi macrum
Metoicoceras whitei
Morrowites wingi
Neocardioceras juddii
Paraconlinoceras barcusi
Paraconlinoceras leonense
Plesiacanthoceras bellsanum
Plesiacanthoceras wyomingense
Plesiacanthoceratoides vetula
Pseudaspidoceras cornucostale
Pseudaspidoceras flexuosum
Spathites puercoensis
Tarrantoceras bentonianum
Tarrantoceras cuspidum
Tarrantoceras exile
Tarrantoceras multicostatum
Tarrantoceras sellardsi
Watinoceras coloradoense
Watinoceras hattini
Watinoceras reesidei
Acmaeidae
Acteonidae
Fictoacteon alveolanus
Fictoacteon humilispira
Fictoacteon imlayi
Fictoacteon paucistriae
Fictoacteon saxanus
Pirsila decora
Pirsila obtusa
Pirsila simpla
Pirsila tensa
Aporrhaidae
Anchura calcaris
Anchura horreana
Anchura kiowana
Anchura modesta
Anchura nebrascensis
Anchura turricula
Anchura whitneyensis
Drepanochilus evansi
Lispodesthes panda
Lispodesthes patula
Buccinidae
Cancellariidae
Capulidae
Cassiopidae
Cerithiidae
Cerithium bosquense
Cerithium interlineatum
Cerithium stantoni
Hemicerithium insigne
Hemicerithium interlineatum
Levicerithium altum
Levicerithium basicostae
Levicerithium breviforme
Levicerithium microlirae
Levicerithium planum
Levicerithium subaltum
Levicerithium timberanum
Macrocerithium tramitense
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
Voysa compacta
Voysa constricta
Voysa craticula
Voysa eulessana
Voysa lepida
Voysa minor
Voysa planolata
Voysa savoiana
Voysa speciosa
Voysa varia
Voysa varia extensa
Voysa varia levicostae
Voysa varia nodosa
Cerithiopsidae
Epitoniidae
Eucyclidae
Fasciolariidae
Bellfusus parvilirae
Bellifusus willistoni
Fasciolaria buccinoides
Fusinus cornelianus
Fusinus fluminis
Graphidula culbertsoni
Paleopsephaea decorosa
Paleopsephaea patens
Paleopsephaea sinuosa
Paleopsephaea vadoana
Piestochilus scarboroughi
Fissurellidae
Gyrotropidae
Mathildiidae
Naticidae
Euspira obliquata
Euspira smolanensis
Euspira subcrassa
Gyrodes fluvianus
Gyrodes tramitensis
Lunatia subcrusa
Natica dorothiensis
Natica humilis
Natica rivulana
Natica smolanense
Natica striaticostata
Neritidae
Paladmetidae
Pleurotomariidae
Pseudomelaniidae
Pyramidellidae
Ringiculidae
Sarganidae
Siphonariidae
Thiaridae
Chemnitzia wyomingensis
Pyrgulifera costata
Pyrgulifera costata sublevis
Pyrgulifera costata tuberata
Pyrgulifera ornata
Turbinidae
Turritellidae
Craginia turriformis
Mesalia kansasensis
Mesalia seriatim
Mesalia shumardi
Turritella (Itaustator) whitei
Turritella belviderei
Turritella encrinoides
Turritella shuleri
Tylostomatidae
Vanikoridae
Viviparidae
Volutidae
Anomiidae
Arcidae
Breviarca angulata
Breviarca faucana
Breviarca grandis
Breviarca habita
Breviarca minor
Breviarca subovata
Idonearca shumardi
Arcticidae
Astartidae
Bakevelliidae
Aguileria cumminsi
Gervillia mudgeana
Gervilliopsis ensiformis
Panis cuneiformis
Pseudoptera gregaria
Pseudoptera hornensis
Pseudoptera rushana
Pseudoptera serrata
Pseudoptera subtortuosa
Pseudoptera viana
Tenuipteria fibrosa
Cardiidae
Cardium tinninense
Protocardia rara
Protocardia subquadrata
Protocardia texana
Protocardia timberensis
Protocardia torta
Trachycardium kansasense
Carditidae
Corbiculidae
Corbulidae
Caryocorbula ovisana
Caryocorbula tradingensis
Caryocorbula varia
Corbula amniculana
Corbula crassicostata
Corbula dentonensis
Corbula fenti
Corbula ponsana
Corbula pulvinata
Corbula senecta
Corbula smolanensis
Corbula starana
Parmicorbula corneliana
Parmicorbula numerosa
Parmicorbula rupana
Parmicorbula sinuosa
Parmicorbula vokesi
Ursirivus arlingtonanus
Ursirivus fanninensis
Crassatellidae
Cucullaeidae
Cucullaea capax
Cucullaea herculea
Cucullaea nebrascensis
Cucullaea recedens
Cucullaea wadei
Idonearca blanpiedi
Cuspidariidae
Donacidae
Entoliidae
Glossidae
Glycymerididae
Gryphaeidae
Exogyra arietina
Exogyra boveyensis
Exogyra columbella
Exogyra ponderosa
Exogyra texana
Gryphaea corrugata
Gryphaea hilli
Gryphaea mucronata
Gryphaea navia
Gryphaea pitcheri
Gryphaea washitensis
Pycnodonte congesta
Pycnodonte kansasensis
Texigryphaea pitcheri
Hiatellidae
Hippuritidae
Inoceramidae
Cremnoceramus deformis
Inoceramus arvanus
Inoceramus balticus
Inoceramus barabini
Inoceramus bouabuiui
Inoceramus concentricus
Inoceramus cuvieri
Inoceramus deformis
Inoceramus dimidius
Inoceramus erectus
Inoceramus eulessanus
Inoceramus flaccidus
Inoceramus fragilis
Inoceramus grandis
Inoceramus involutus
Inoceramus labiatus
Inoceramus latus
Inoceramus pennatus
Inoceramus perplexus
Inoceramus pictus
Inoceramus platinus
Inoceramus prefragilis
Inoceramus proximus
Inoceramus rutherfordi
Inoceramus sagensis
Inoceramus simpsoni
Inoceramus subhercynicus
Inoceramus truncatus
Inoceramus typicus
Mytiloides hattini
Mytiloides labiatus
Mytiloides mytiloides
Volviceramus grandis
Volviceramus involutus
Laternulidae
Anatimya eulessana
Anatimya longula
Laternula gemmea
Laternula johnsonana
Laternula scutulum
Laternula tofana
Laternula virgata
Limidae
Limopsidae
Lucinidae
Ctena imbricatula
Lucina aspera
Lucina dentonana
Lucina juvenis
Lucina occidentalis
Nympholucina cleburni
Nympholucina occidentalis
Mactridae
Aliomactra compressa
Cymbophora puteana
Cymbophora saccellana
Cymbophora schucherti
Cymbophora securis
Cymbophora spooneri
Cymbophora warrenana
Geltena nitida
Geltena obesa
Geltena prunoides
Geltena subcompressa
Geltena subequilatera
Mactra nitidula
Mactra siouxensis
Priscomactra cymba
Priscomactra munda
Mactromyidae
Malletiidae
Mytilidae
Botula carolinensis
Botula plumosa
Brachidontes arlingtonanus
Brachidontes filisculptus
Brachidontes filisculptus microcostae
Brachidontes fulpensis
Brachidontes nonbifurcus
Crenella elegantula
Crenella subcircularis
Lithophaga interrogatum
Modiolus galpinianus
Modiolus meeki
Volsella alveolana
Volsella modesta
Volsella tarrantana
Nuculanidae
Nuculidae
Acila chicotana
Nucula cancellata
Nucula catherina
Nucula percrassa
Nucula planimarginata
Nucula rivulana
Nucula sholsa
Ostreidae
Crassostrea kiowana
Crassostrea subtrigonalis
Lopha kansasensis
Lopha lugubris
Lopha subovata
Nanostrea fluctigera
Ostrea anceps
Ostrea arcuata
Ostrea beloiti
Ostrea carica
Ostrea carinata
Ostrea congesta
Ostrea crenulimargo
Ostrea exogyroides
Ostrea glabera
Ostrea leveretti
Ostrea maxima
Ostrea perversa
Ostrea rugosa
Ostrea sannionis
Ostrea soleniscus
Ostrea subradiata
Ostrea titan
Pseudoperna bentmersis
Pseudoperna congesta
Oxytomidae
Parallelodontidae
Pectinidae
Neithea boesei
Neithea budaensis
Neithea hartmani
Neithea simondsi
Pecten bonneri
Pecten cavanus
Pecten ellsworthensis
Pecten irregularis
Pecten martinsensis
Pecten moodyi
Pecten occidentalis
Pecten siederensis
Pecten subalpina
Pecten texana
Pecten wrighti
Pharidae
Pholadidae
Pholadomyidae
Plicatulidae
Pollicidae
Poromyidae
Pteriidae
Phelopteria dalli
Phelopteria linguaeformis
Phelopteria timberensis
Pteria linguaeformis
Pteria petrosa
Pteria salinensis
Radiolitidae
Durania maxima
Durania terlinguae
Eoradiolites quadratus
Praeradiolites edwardsensis
Sauvagesia morgani
Solemyidae
Tancrediidae
Tellinidae
Linearia concentrica
Linearis kansasensis
Nelltia stenzeli
Solyma stewarti
Sourimis equilateralis
Tellina dugansensis
Tellina parkerana
Tellina rivana
Tellina stabulana
Tellinimera scitula
Teredinidae
Trigoniidae
Veneridae
Callistina alta
Callistina lamarensis
Callistina munda
Callistina taffi
Cyclorisma orbiculata
Cyprimeria patella
Flaventia ludana
Legumen ligula
Legumen planulatum
Sinonia levis
Veneridae
Callistina alta
Callistina lamarensis
Callistina munda
Callistina taffi
Cyclorisma orbiculata
Cyprimeria patella
Flaventia ludana
Legumen ligula
Legumen planulatum
Sinonia levis
Yoldiidae
Anorthopygidae
Arbaciidae
Astropectinidae
Bathycrinidae
Cassidulidae
Conulidae
Hemiasteridae
Hemiaster calvini
Hemiaster comanchei
Hemiaster cranium
Hemiaster elegans
Hemiaster texanus
Hemiaster whitei
Holanthus texanus
Mecaster batnensis
Holasteridae
Holectypidae
Micrasteridae
Nucleolitidae
Phymosomatidae
Pseudodiadematidae
Saleniidae
Goniophorus scotti
Goniophorus whitneyi
Salenia pseudowhitneyi
Salenia stenzeli
Salenia texana
Salenia volana
Salenia whitneyi
Toxasteridae
Uintacrinidae
Alopiidae
Amiidae
Anacoracidae
Apogonidae
Callorhynchidae
Carcharhinidae
Cretoxyrhinidae
Crossognathidae
Dasyatidae
Enchodontidae
Ginglymostomatidae
Hadrosauridae
Hesperornithidae
Holocentridae
Ichthyodectidae
Ichthyornithidae
Latimeridae
Mosasauridae
Clidastes liodontus
Clidastes propython
Mosasaurus dekayi
Platecarpus coryphaeus
Platecarpus ictericus
Platecarpus planifrons
Platecarpus tympaniticus
Selmasaurus johnsoni
Tylosaurus nepaeolicus
Tylosaurus proriger
Myliobatidae
Neoplagiaulacidae
Odontaspididae
Carcharias amonensis
Carcharias samhammeri
Carcharias tenuiplicatus
Odontaspis aculeatus
Odontaspis saskatchewanensis
Odontaspis sublatata
