Taxa Count: 372
ACANTHOCERATIDAE
ANATINELLIDAE
ANCYLOCERATIDAE
ANOMIIDAE
APORRHAIDAE
BACULITIDAE
BALANIDAE
CARDIIDAE
CASSIDAE
COLLIGNONICERATIDAE
COLUBRARIIDAE
CORBULIDAE
CRASSATELLIDAE
CUCULLAEIDAE
CYLICHNIDAE
CYRENIDAE
CYRENOIDIDAE
DENTALIIDAE
DIPLOMOCERATIDAE
DISCINIDAE
FASCIOLARIIDAE
GADILIDAE
GLOSSIDAE
GRYPHAEIDAE
GYRODIDAE
HAMINOEIDAE
HAMITIDAE
HEMIASTERIDAE
HEMISINIDAE
HETEROCERATIDAE
INOCERAMIDAE
LUCINIDAE
LYMNAEIDAE
MACTRIDAE
MARGARITIDAE
MEMBRANIPORIDAE
MICRABACIIDAE
MYTILIDAE
NATICIDAE
NAUTILIDAE
NERITIDAE
NOSTOCERATIDAE
NUCULANIDAE
NUCULIDAE
OLIVIDAE
OSTREIDAE
PECTINIDAE
PHARIDAE
PHOLADOMYIDAE
PHYSIDAE
PINNIDAE
PLACENTICERATIDAE
PLANORBIDAE
PLEUROCERIDAE
PTERIIDAE
PTEROTRIGONIIDAE
PTYCHOCERATIDAE
ROSTELLARIIDAE
SCAPHITIDAE
SCHLOENBACHIIDAE
SERPULIDAE
SPHAERIIDAE
TELLINIDAE
TEREDINIDAE
THRACIIDAE
TRIGONIIDAE
TURBINIDAE
TURRILITIDAE
TURRITELLIDAE
UNIONIDAE
VASCOCERATIDAE
VENERIDAE
VIVIPARIDAE
YOLDIIDAE
Family Not Defined
Inoceramus sagensis
Inoceramus barabini
Inoceramus oblongus
Inoceramus sublaevis
Lucina cleburni
Inoceramus barbabini
Inoceramus deformis
Anisomyon borealis
Inoceramus vanuxemi
Heteroceras cochleatum
Mactra warrenana
Lunatia subcrassa
Mactra formosa
Pyrifusus newberryi
Melania wyomingensis
Pteria linguiformis
Modiolus meeki
Ostrea inornata
Pinna lakesii
Anomia rectiformis
Ostrea falcata
Anisomyon centrale
Anisomyon patelliformis
Callista deweyi
Ostrea congesta
Inoceramus labiatus
Metoicoceras swallowi
Helicoceras corrugatum
Inoceramus simpsoni
Pholadomya subventricosa
Pteria nebrascana
Cylichna scitula
Gryphaea marcoui
Fasciolaria culbertsoni
Ostrea patina
Tancredia americana
Veniella humilis
Thetis circularis
Crassatella evansi
Eutrephoceras montanensis
Legumen subelliptica
Pachymya herseyi
Neotaenioglossa
Fusus cheyennensis
Fasciolaria cheyennensis
Callista nebrascensis
Scaphites nicolleti
Panopea berthoudi
Anchura americana
Trigonacallista deweyi
Anatina doddsi
Chaetetes demissus
Campeloma multilineata
Heteroceras nebrascense
Inoceramus proximus
Pachymya aurandi
Volutoderma clatworthyi
Serpula markmani
Heteroceras tortum
Nuculana subequilateralis
Neaera ventricosa
Inoceramus cripsi
Placenticeras intercalare
Sphaeriola cordata
Goniomya americana
Mytilus subarcuatus
Syncyclonema rigida
Leptosolen
Liopistha undata
Cylichna volvaria
Lunatia obliquata
Ostrea subtrigonalis
Anomia micronema
Modiola regularis
Viviparus thompsoni
Lioplacodes plicapressus
Sphenodiscus lenticularis
Cinulia concinna
Tellina equilateralis
Capulus spangleri
Vanikoro ambigua
Nucula planimarginata
Gyrodes crenata
Gyrodes abyssina
Scaphites conradi
Crenella elegantula
Pleurotomaria contortus
Margarites nebrascensis
Pteria salinensis
Ostrea larimerensis
Callista owenana
Ostrea noctuensis
Inoceramus fragilis
Chrysallida cerithiformis
Pteria haydeni
Mactra canonensis
Yoldia evansi
Yoldia scitula
Scaphites warreni
Anomia subquadrata
Xenophora simpsoni
Ostrea lugubris
Ostrea malachitensis
Fasciolaria utahensis
Solenomya obscura
Tapes cyprimeriformis
Tritonidea huerfanensis
Cardium pauperculum
Mactra emmonsi
Volutoderma gracilis
Pyropsis coloradoensis
Haminea truncata
Amauropsis bulbiformis
Trigonarca obliqua
Gyrodes depressa
Volutoderma dalli
Gyrodes conradi
Exogyra suborbiculata
Turritella whitei
Volutoderma ambigua
Liopistha concentrica
Gervillia perpllexa
Pinna petrina
Pteria gastrodes
Pyktes fusiformis
Tellina isonema
Cassidulus stantoni
Gryphaea newberryi
Corbula subtrigonalis
Corbicula cardinaeformis
Corbicula subtrigonalis
Actaeon prosocheila
Prionotropis woolgari
Inoceramus barabini barabini
Pholadomya papyracea
Cardium major
Protocardia subquadrata
Scaphites nodosus quadrangularis
Corbula engelmanni
Corbulomya tauschi
Viviparus conesi
Corbicula pyriformis
Corbula pyriformis
Modiola pealei
Ostrea soleniscus
Ostrea coalvillensis
Crassatella cimarronensis
Fasciolaria calbertsoni
Anisomyon subovatus
Mactra nucula
Isobuthus oblonga
Ostrea glabra wyomingensis
Ostrea glabra arcuatilis
Viviparus plicapressa
Neritina volvulineata
Corbula durkeei
Lioplax endlichi
Liopistha elongata
Nemodon
Modiola laticostata
Melania insculpta
Geloina securis
Modiola multilinigera
Barbatia micronema
Ostrea sannionis
Liopistha meeki
Anatina lineata
Veniella mortoni
Ostrea belliplicata
Rostellaria ambigua
Rostellaria dalli
Fusus venenatus
Inoceramus convexus
Liopistha montanensis
Turris minor
Sphaeriola endotrachys
Protocardia rara
Teredo irregularis
Inoceramus altus
Schloenbachia belknapi
Cyprimeria texana
Lima wacoensis
Exogyra texana
Protocardia texana
Isocardia medialis
Pinna guadalupae
Cucullaea terminalis
Chione decepta
Pholadomya sancti-sabae
Cardita belviderensis
Trigonioida
Cerithium bosquense
Rostellaria subfusiformis
Turritella worthensis
Tylostoma chihuahuense
Tylostoma tumida
Diplopodia taffi
Hemiaster whitei
Heteraster texanus
Schloenbachia acutocarinata
Gryphaea navia
Astarte acuminata
Protocardia filosa
Cucullaea terminalis recedens
Pholadomya knowltoni
Pleuromya henselli
Turritella graysonensis
Schloenbachia trinodosa
Gryphaea washitaensis
Plicatula incongrua
Lunatia pedernalis
Cypricardinia texana
Buccinopsis regina
Arctica texana
Homomya jurafacies
Homomya solida
Arctica solida
Arca gratiota
Protocardia multistriata
Exogyra hilli
Ostrea hilli
Diadema texanum
Arctica retrorsa
Isocardia mediale
Holectypus planatus
Gryphaea mucronata
Exogyra ponderosa
Sarcodina
Odontobasis ventricosa
Pachymelania cleburni
Eriphyla gregaria
Spironema
Helicoceras pariense