List of the Mesozoic life of Mississippi

This list of the Mesozoic life of Mississippi contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Mississippi and are between 252.17 and 66 million years of age.

• Acesta
  • †Acesta riddlei
• †Aciculiscala
  • †Aciculiscala acuta
  • †Aciculiscala coffea
• Acirsa
  • †Acirsa clathrata
  • †Acirsa culmosa
  • †Acirsa flexicostata
  • †Acirsa gravida
  • †Acirsa implexa
  • †Acirsa microstriata – or unidentified comparable form
  • †Acirsa wadei
• Acmaea
• †Acrocoelum – tentative report
  • †Acrocoelum cereum
• †Acteon
  • †Acteon cicatricosus
  • †Acteon pistilliformis
• †Acutostrea
  • †Acutostrea plumosa
• †Aenona
  • †Aenona eufaulensis

• 

  †Agerostrea
  • †Agerostrea mesenterica
• †Aliofusus
  • †Aliofusus stamineus

• 

  Alvania
  • †Alvania tallahatchiensis
• †Amaurellina
  • †Amaurellina stephensoni
• †Ambigostrea
  • †Ambigostrea tecticosta

• 

  †Ampullina
  • †Ampullina lepta
  • †Ampullina potens
• Amuletum
  • †Amuletum costata
  • †Amuletum costatum – tentative report
  • †Amuletum dumasensis
  • †Amuletum fasciolatum
  • †Amuletum limbatum
  • †Amuletum macnairyensis
  • †Amuletum macnairyensis torquatum
  • †Amuletum wadei
• †Anatimya
  • †Anatimya anteradiata
  • †Anatimya postsulcata
• Anatina
  • †Anatina jerseyensis – or unidentified comparable form
• †Anchura
  • †Anchura abrupta
  • †Anchura chapelvillensis
  • †Anchura coffea
  • †Anchura corniculata
  • †Anchura noakensis – tentative report
  • †Anchura substriata
• †Ancilla
  • †Ancilla acutula
• †Anisomyon
• †Anomalofusus
  • †Anomalofusus lemniscatus
  • †Anomalofusus subnodosus
• †Anomia
  • †Anomia argentaria
  • †Anomia ornata
  • †Anomia tellinoides
• †Anomoeodus
  • †Anomoeodus latidens – type locality for species
  • †Anomoeodus mississippiensis – type locality for species
  • †Anomoeodus phaseolus
• Anteglosia
  • †Anteglosia tennesseensis
• †Anteglossia
• †Antillocaprina
• †Aphrodina
  • †Aphrodina eufaulensis – tentative report
  • †Aphrodina regia
  • †Aphrodina tippana
• †Arca
  • †Arca rostellata

• 

  Architectonica
• †Arcoscalpellum
  • †Arcoscalpellum bakeri
  • †Arcoscalpellum campus
  • †Arcoscalpellum withersi
• †Arctostrea
  • †Arctostrea falacata
• Arrhoges
  • †Arrhoges plenacosta
• †Ascaulocardium
  • †Ascaulocardium armatum
• Astarte
  • †Astarte culebrensis
• Ataphrus
  • †Ataphrus griffini

• 

  Atractosteus
• †Atreta
  • †Atreta melleni

• 

  †Baculites
  • †Baculites arculus
  • †Baculites capensis
  • †Baculites grandis – or unidentified comparable form
  • †Baculites tippahensis

• 

  Barbatia
  • †Barbatia carolinensis
  • †Barbatia lintea
• †Bathytormus
  • †Bathytormus pteropsis

• 

  †Belemnitella
  • †Belemnitella americana
• †Bellifusus
  • †Bellifusus angulicostatus
  • †Bellifusus curvicostatus
  • †Bellifusus curvicostatus crenulatus
  • †Bellifusus spinosus
• †Belliscala
  • †Belliscala lirata
  • †Belliscala nodosa
  • †Belliscala rockensis
• †Beretra
  • †Beretra gracilis
  • †Beretra preclara
  • †Beretra ripleyana
• Bernaya
  • †Bernaya mississippiensis

• 

  Bittium – tentative report
• †Bizarrus
  • †Bizarrus abnormalis
• †Boehmoceras
  • †Boehmoceras arculus
• Botula
  • †Botula carolinensis
  • †Botula ripleyana
• Brachidontes
• †Brachylepas
  • †Brachylepas angulosa
• †Breviarca
  • †Breviarca umbonata
• †Buccinopsis
  • †Buccinopsis crassicostata
  • †Buccinopsis crassus
  • †Buccinopsis dorothiella
  • †Buccinopsis solida
• Bulla – tentative report
• †Bullopsis
  • †Bullopsis cretacea
  • †Bullopsis demersus

• Cadulus
  • †Cadulus obnutus
• Caestocorbula
  • †Caestocorbula crassaplica
  • †Caestocorbula crassiplica
  • †Caestocorbula suffalciata
  • †Caestocorbula terramaria
• †Calliomphalus
  • †Calliomphalus americanus
  • †Calliomphalus argenteus
  • †Calliomphalus conanti
  • †Calliomphalus microcancelli
  • †Calliomphalus nudus
  • †Calliomphalus paucispirilus
  • †Calliomphalus tuberculosus
• Calyptraea
• †Camptonectes
  • †Camptonectes bellisculptus
  • †Camptonectes berryi
  • †Camptonectes bubonis
  • †Camptonectes burlingtonensis
• Cantharus
  • †Cantharus lemniscatus

• 

  Capulus
  • †Capulus cuthandensis
  • †Capulus spangleri

• 

  Carcharias – tentative report
• Cardium
  • †Cardium spillmani

• 

  Caryophyllia
  • †Caryophyllia konincki – type locality for species
• †Catopygus
  • †Catopygus mississippiensis – type locality for species
• †Caveola
  • †Caveola acuta

• 

  Ceratia
  • †Ceratia cylindrata

• 

  Cerithiella
  • †Cerithiella – type locality for species – informal
  • †Cerithiella aequalirata
  • †Cerithiella chapelvillensis
  • †Cerithiella nodoliratum
  • †Cerithiella semirugatum
• †Cerithioderma
  • †Cerithioderma nodosa

• 

  Cerithium
  • †Cerithium binodosus
  • †Cerithium cretaceus
  • †Cerithium nodoliratum
  • †Cerithium robustus
  • †Cerithium semirugatum
  • †Cerithium weeksi
• Chlamys
  • †Chlamys mississippensis

• 

  †Chondrites

• 

  Cidaris
  • †Cidaris wahalakensis
• †Clarkiella
  • †Clarkiella hemispherica
• Clavagella
• †Clavipholas
  • †Clavipholas pectorosa
• Cliona
• †Clisocolus
  • †Clisocolus concentricum
• †Coahuilites – tentative report
• †Colombellina
  • †Colombellina americana
  • †Colombellina cancellata

• 

  Corbula
  • †Corbula torta
• †Costellacesta
  • †Costellacesta riddlei
• Crassatella
  • †Crassatella hodgei
  • †Crassatella neusensis
  • †Crassatella roodensis
  • †Crassatella vadosa
• Crenella
  • †Crenella elegantula
  • †Crenella serica
• †Creonella
  • †Creonella subangulata
  • †Creonella triplicata
  • †Creonella turretiforma
• †Cretiscalpellum
  • †Cretiscalpellum hardnedi
  • †Cretiscalpellum vallum

• 

  †Cretolamna
  • †Cretolamna appendiculata
• †Cristipluma – type locality for genus
  • †Cristipluma mississippiensis – type locality for species
• Crucibulum

• 

  Cucullaea
  • †Cucullaea capax
  • †Cucullaea carolinensis
  • †Cucullaea littlei
  • †Cucullaea vulgans
  • †Cucullaea wadei – tentative report
• †Cuna
  • †Cuna texana
• Cuspidaria
  • †Cuspidaria grandis
  • †Cuspidaria jerseyensis – or unidentified comparable form
• †Cyclorisma
  • †Cyclorisma parva
• Cylichna
  • †Cylichna diversilirata
  • †Cylichna incisa
  • †Cylichna intermissia
  • †Cylichna secalina
• †Cylindrotruncatum
  • †Cylindrotruncatum demersum
• †Cymbophora
  • †Cymbophora appressa
  • †Cymbophora berryi
  • †Cymbophora lintea
• †Cymella
  • †Cymella bella
  • †Cymella ironensis – tentative report
• †Cyprimeria
  • †Cyprimeria alta
  • †Cyprimeria depressa

• †Dakoticancer
  • †Dakoticancer australis
• †Damesia
  • †Damesia keownvillensis
• Dasmosmilia
  • †Dasmosmilia kochii
• †Dentalium
  • †Dentalium leve
• †Deussenia
  • †Deussenia bellalirata
  • †Deussenia ripleyana
  • †Deussenia travisana – or unidentified comparable form
• †Dhondtichlamys
  • †Dhondtichlamys venustus
• †Dictyaraea
• Dimya
  • †Dimya melleni
• †Diplomoceras
  • †Diplomoceras trabeatus
• †Dircella
  • †Dircella spillmani

• 

  †Discoscaphites
  • †Discoscaphites conradi
  • †Discoscaphites iris

• 

  †Dolicholatirus
  • †Dolicholatirus torquatus
• †Drepanocheilus
• †Drepanochilus
  • †Drepanochilus triliratus
• †Drilluta
  • †Drilluta buboanus
  • †Drilluta distans
  • †Drilluta lemniscata
  • †Drilluta major

• †Ecclesiogyra
  • †Ecclesiogyra heliclina
  • †Ecclesiogyra inflata
• †Echinimathilda
  • †Echinimathilda corona
  • †Echinimathilda microstriata
  • †Echinimathilda parvula

• 

  †Ecphora
  • †Ecphora proquadricostata
• †Ellipsoscapha
  • †Ellipsoscapha mortoni

• 

  †Enchodus
  • †Enchodus petrosus
• †Endoptygma
  • †Endoptygma leprosa
• †Entomope
  • †Entomope ponderi
• †Eoacteon
  • †Eoacteon ithyocheilus
  • †Eoacteon linteus
• †Eoharpa
  • †Eoharpa sinuosa
• Eonavicula
  • †Eonavicula rostellata
• †Eothoracosaurus – type locality for genus
  • †Eothoracosaurus mississippiensis – type locality for species
• †Epitonium
  • †Epitonium faearium
  • †Epitonium sillimani

• 

  †Eryma – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Eryma flecta
• †Etea
  • †Etea carolinensis
• †Eubaculites
  • †Eubaculites carinatus
• †Eufistulana
  • †Eufistulana ripleyana
• †Eufistulina
  • †Eufistulina ripleyana
• †Eulima
  • †Eulima clara
  • †Eulima coffea
  • †Eulima gracilistylis
  • †Eulima laevigata
  • †Eulima monmouthensis
  • †Eulima spirala
• †Euspira
  • †Euspira rectilabrum

• 

  †Eutrephoceras
  • †Eutrephoceras dekayi
  • †Eutrephoceras perlatus
• †Exechocirsus
  • †Exechocirsus cowickeensis

• 

  †Exogyra
  • †Exogyra costata
  • †Exogyra erraticostata
  • †Exogyra ponderosa
  • †Exogyra upatoiensis

• †Flemingostrea
  • †Flemingostrea subspatula
• †Fulgerca
  • †Fulgerca attenuata – tentative report
  • †Fulgerca compressilirata
• †Fusimilis
  • †Fusimilis kummeli
  • †Fusimilis novemcostatus
  • †Fusimilis tippanus

• 

  Fusinus
  • †Fusinus macnairyensis

• †Gegania
  • †Gegania bella
  • †Gegania bella prodiga
  • †Gegania mississippiensis
  • †Gegania parabella

• 

  Gemmula
  • †Gemmula cretacea

• 

  †Gervillia
• †Gervilliopsis
  • †Gervilliopsis ensiformis

• 

  Ginglymostoma
  • †Ginglymostoma globidens
• Glossus

• 

  Glycymeris
  • †Glycymeris microsulci
  • †Glycymeris rotundata
  • †Glycymeris whiteleyensis
• †Glyptoxoceras
• †Goniocylichna
  • †Goniocylichna bisculpturata
  • †Goniocylichna elongata
• †Graciliala
  • †Graciliala calcaris
  • †Graciliala decemlirata
  • †Graciliala johnsoni
• †Granocardium
  • †Granocardium dumosum
  • †Granocardium kuemmeli
  • †Granocardium kummeli
  • †Granocardium lowei
  • †Granocardium tippananum
  • †Granocardium tippanum
• †Granosolarium
  • †Granosolarium coffea
• †Graphidula
  • †Graphidula melanopsis
  • †Graphidula multicostata
  • †Graphidula terebriformis

• 

  †Gryphaea
  • †Gryphaea convexa
• †Gryphaeostrea
  • †Gryphaeostrea vomer
• †Gymnentome
  • †Gymnentome canalis
  • †Gymnentome unicarinata

• 

  †Gyrineum
  • †Gyrineum gwinae
• Gyrodes
  • †Gyrodes abyssinus
  • †Gyrodes americanus
  • †Gyrodes major
  • †Gyrodes petrosus
  • †Gyrodes spillmani
  • †Gyrodes supraplicatus
• †Gyropleura

• †Hadrosaurus – tentative report
• †Hamites
• †Hamulus
  • †Hamulus onyx
  • †Hamulus ripleyanus
  • †Hamulus squamosus
• †Harduinia
  • †Harduinia aequorea
  • †Harduinia dalli
  • †Harduinia mortoni
  • †Harduinia mortonis
  • †Harduinia weatherbyi
• †Heliacus
  • †Heliacus reticulatus
• †Helicaulax
  • †Helicaulax formosa
• †Helicoceras
• Hemiaster
  • †Hemiaster humphreysanus
  • †Hemiaster wetherbyi
• Hemiscyllium
• †Hercorhynchus
  • †Hercorhynchus quadriliratus
• †Hercorhyncus
  • †Hercorhyncus bicarinatus
  • †Hercorhyncus pagodaformis
  • †Hercorhyncus tippanus
  • †Hercorhyncus triliratus

• 

  †Hoploparia
  • †Hoploparia tennesseensis
• Hyala
  • †Hyala fragila

• 

  †Hybodus
• †Hydrotribulus
  • †Hydrotribulus elegans
• †Hyphantoceras – tentative report
  • †Hyphantoceras amapondense
• †Hypolophus
  • †Hypolophus mcnultyi

• 

  †Inoceramus
  • †Inoceramus quadrans – or unidentified comparable form
• †Inoperna
• †Ischyrhiza
  • †Ischyrhiza mira

• Juliacorbula
  • †Juliacorbula monmouthensis

• †Kummelia

• †Lacrimiforma
  • †Lacrimiforma secunda
• Laternula
  • †Laternula robusta
• †Latiala
  • †Latiala lobata
• †Latiata – tentative report
• †Laxispira
  • †Laxispira lumbricalis
  • †Laxispira monilifera
• †Lefortia
  • †Lefortia trojana – type locality for species
• †Legumen
  • †Legumen ellipticum
• †Lemniscolittorina
  • †Lemniscolittorina berryi
  • †Lemniscolittorina yonkersi

• 

  Lepisosteus
• †Leptosolen
  • †Leptosolen biplicata
• Lima
  • †Lima deatsvillensis
  • †Lima pelagica
• Limatula
  • †Limatula acutilineata
• Limopsis
  • †Limopsis meeki
  • †Limopsis perbrevis
• †Linearis
  • †Linearis magnoliensis
  • †Linearis metastriata
  • †Linearis pectinis
• †Linthia
  • †Linthia variabilis

• 

  Linuparus
  • †Linuparus canadensis
• †Liopeplum
  • †Liopeplum canalis
  • †Liopeplum cretaceum
  • †Liopeplum leioderma
  • †Liopeplum nodosum
  • †Liopeplum rugosum
  • †Liopeplum spiculatum
• †Liopistha
  • †Liopistha protexta
• †Liothyris
  • †Liothyris carolinensis
• †Lispodesthes
  • †Lispodesthes amplus

• 

  Lithophaga
• †Lomirosa
  • †Lomirosa carinata
• †Longitubus
• †Longoconcha
  • †Longoconcha dalli
  • †Longoconcha imbricatus
  • †Longoconcha quadrilirata
  • †Longoconcha tennesseensis

• 

  Lopha
  • †Lopha falcata
  • †Lopha mesenterica
• †Lowenstamia
  • †Lowenstamia cucullata
  • †Lowenstamia funiculus
  • †Lowenstamia liratus
  • †Lowenstamia subplanus – or unidentified comparable form
• †Lucina – tentative report
• †Lupira
  • †Lupira disparila
  • †Lupira pyriformis
  • †Lupira turbinea
• †Lycettia
  • †Lycettia tippana
  • †Lycettia tippanus
• †Lyriochlamys
  • †Lyriochlamys cretosa
  • †Lyriochlamys cretosus

• Malletia
  • †Malletia longfrons
  • †Malletia longifrons
  • †Malletia stephensoni
• †Margaritella
  • †Margaritella pumila
• †Mataxa
  • †Mataxa elegans
  • †Mataxa leioderma
• †Mathilda
  • †Mathilda cedarensis
  • †Mathilda corona
  • †Mathilda hexalira
  • †Mathilda pentalira
  • †Mathilda ripleyana
  • †Mathilda unionensis
• †Menabites
  • †Menabites danei
  • †Menabites delawarensis
• Meretrix – tentative report
• †Mesodendriurn
  • †Mesodendriurn oktibbehaensis
• †Micrabacia
  • †Micrabacia marylandica – type locality for species
  • †Micrabacia radiata – type locality for species

• 

  †Micraster
  • †Micraster americanus

• 

  Modiolus
  • †Modiolus sedesclaris
  • †Modiolus sedesclarus
• †Monroea
  • †Monroea coffea
• †Morea
  • †Morea corsicanensis
  • †Morea corsicanensis depressa
  • †Morea marylandica
  • †Morea rotunda
  • †Morea transenna

• 

  †Mosasaurus
• †Myobarbum
  • †Myobarbum laevigatum
• Myrtea
  • †Myrtea stephensoni
• †Mytilus – tentative report

• †Napulus
  • †Napulus fragilis
  • †Napulus octoliratus
• †Neamphitomaria
  • †Neamphitomaria planospira
  • †Neamphitomaria reticulata
  • †Neamphitomaria stantoni
• †Neithea
  • †Neithea bexarensis
• †Nemoarca
• †Nemocardium
  • †Nemocardium fragile
• †Nemodon
  • †Nemodon brevifrons
  • †Nemodon eufalensis
  • †Nemodon eufaulensis
  • †Nemodon grandis – or unidentified comparable form
  • †Nemodon neusensis

• 

  Nerita
  • †Nerita reticulirata
• Neritina
  • †Neritina densata – tentative report
• †Nonactaeonina

• 

  †Nostoceras
  • †Nostoceras turrilites – tentative report
• †Notopocorystes
  • †Notopocorystes testacea
• Nozeba
  • †Nozeba crassa

• 

  Nucula
  • †Nucula camia
  • †Nucula cuneifrons
  • †Nucula percrassa
  • †Nucula perequalis
  • †Nucula stantoni
• Nuculana
  • †Nuculana tarensis
  • †Nuculana whitfieldi
• †Nudivagus
• †Nymphalucina
  • †Nymphalucina linearia
  • †Nymphalucina parva

• †Odontobasis – tentative report
  • †Odontobasis sulcata
• †Oligoptycha
  • †Oligoptycha corrugata
• Opaliopsis
  • †Opaliopsis angustocota
• †Opertochasma
• †Ornopsis
  • †Ornopsis digressa
  • †Ornopsis elevata
  • †Ornopsis modica

• 

  Ostrea
  • †Ostrea sloani

• 

  †Pachydiscus

• 

  †Pachymelania – tentative report
• †Paladmete
  • †Paladmete cancellaria
  • †Paladmete gardnerae
  • †Paladmete gardnerae pygmaea
  • †Paladmete laevis
• †Palaeoxantho – type locality for genus
  • †Palaeoxantho libertiensis – type locality for species
• †Paleofusimitra
  • †Paleofusimitra elongata
• †Paleopsephaea
  • †Paleopsephaea mutabilis
  • †Paleopsephaea tenuilirata
• Panopea
  • †Panopea monmouthensis
• †Parafusus
  • †Parafusus callilateris
  • †Parafusus coloratus
  • †Parafusus saffordi
• †Paranomia
  • †Paranomia scabra
• †Parapaguristes
  • †Parapaguristes tuberculatus – type locality for species
  • †Parapaguristes whitteni – type locality for species
• †Parmicorbula
  • †Parmicorbula suffalciata
  • †Parmicorbula terramaria
  • †Parmicorbula torta
• †Pauciacirsa
  • †Pauciacirsa simplex
• Pecten
  • †Pecten venustus
• †Periplomya
  • †Periplomya applicata
• †Perissoptera
  • †Perissoptera prolabiata mississippiensis
• †Perrisonota
  • †Perrisonota protexta
• Phacoides
  • †Phacoides mattiformis – tentative report
• †Phelopteria
  • †Phelopteria linguaeformis
  • †Phelopteria linguiformis

• 

  Pholadomya
  • †Pholadomya occidentalis
• †Piestochilus
  • †Piestochilus curviliratus
• Pinna
  • †Pinna laqueata

• 

  †Placenticeras
  • †Placenticeras placenta
  • †Placenticeras syrtale
• †Plagiostoma
  • †Plagiostoma woodsi

• 

  †Platecarpus – type locality for genus
  • †Platecarpus tympaniticus – type locality for species
• †Plectomya
• †Plesiotriton
  • †Plesiotriton cretaceus
• †Pleuriocardia
  • †Pleuriocardia eufaulense
• Plicatula
  • †Plicatula mullicaensis
  • †Plicatula tetrica

• 

  Polinices
  • †Polinices kummeli
• †Postligata
  • †Postligata wordeni
• †Praeleda
  • †Praeleda compar
• †Prehepatus
  • †Prehepatus harrisi
• †Promathildia
  • †Promathildia parvula
• †Protobusycon
  • †Protobusycon binodosum
• †Protocallianassa
  • †Protocallianassa mortoni
• †Protocardia
  • †Protocardia spillmani
  • †Protocardia stantoni
• †Pseudoclaviscala
  • †Pseudoclaviscala laevicosta
  • †Pseudoclaviscala rugacosta

• 

  †Pseudocorax
  • †Pseudocorax granti
• †Pseudolimea
  • †Pseudolimea reticulata
  • †Pseudolimea sellardsi
• Pseudomalaxis
  • †Pseudomalaxis pateriformis
  • †Pseudomalaxis pilsbryi
  • †Pseudomalaxis stantoni
• †Pseudoptera
• †Pseudoschloenbachia
  • †Pseudoschloenbachia mexicana
• †Pteria
  • †Pteria rhombica
• †Pterocerella
  • †Pterocerella maryea
  • †Pterocerella poinsettiformis
  • †Pterocerella pontotocensis
  • †Pterocerella tippana

• 

  †Pterotrigonia
  • †Pterotrigonia angulicostata
  • †Pterotrigonia bartrami
  • †Pterotrigonia eufalensis
  • †Pterotrigonia eufaulensis
  • †Pterotrigonia thoracia
  • †Pterotrigonia thoracica
• †Ptychodus
  • †Ptychodus mortoni
• †Ptychosyca
  • †Ptychosyca inornata
• †Ptychotrygon
  • †Ptychotrygon vermiculata
• †Pugnellus
  • †Pugnellus densatus
  • †Pugnellus goldmani
• Pulvinites
  • †Pulvinites argenteus
• Punctiscala
  • †Punctiscala melaniea

• 

  Pycnodonte
  • †Pycnodonte belli
  • †Pycnodonte mutabilis
  • †Pycnodonte vesiculare
  • †Pycnodonte vesicularis
• †Pyrifusus
  • †Pyrifusus sinuocostatus
  • †Pyrifusus subdensatus
• †Pyropsis
  • †Pyropsis cornutus
  • †Pyropsis interstriatus
  • †Pyropsis perlata
  • †Pyropsis prolixa

• †Rachiosoma
  • †Rachiosoma mortoni
• †Radiopecten
  • †Radiopecten mississippiensis
• †Raninella
  • †Raninella tridens
• †Reginaites
  • †Reginaites exilis – type locality for species
  • †Reginaites leei
• †Remera
  • †Remera flexicostata
  • †Remera microstriata
  • †Remera stephensoni
• †Remnita
  • †Remnita anomalocostata
• †Rhombopsis
  • †Rhombopsis molinoensis

• 

  Ringicula
  • †Ringicula clarki
  • †Ringicula pulchella
  • †Ringicula yochelsoni

• †Sargana
  • †Sargana stantoni
• †Sassia
  • †Sassia carlea
• †Scambula
  • †Scambula perplana

• 

  †Scapanorhynchus
  • †Scapanorhynchus texanus

• 

  †Scaphites
  • †Scaphites leei
• †Sclerorhynchus
• †Scobinidola
  • †Scobinidola guttatus
• Seila
  • †Seila quadrilirata
• Serpula
• †Solariorbis
  • †Solariorbis clara
• †Solenoceras
• †Solyma
  • †Solyma levis

• 

  †Sphenodiscus
  • †Sphenodiscus beecheri
  • †Sphenodiscus lobatus
  • †Sphenodiscus pleurisepta
• †Spinaptychus
• Spondylus

• 

  Squalicorax
  • †Squalicorax kaupi
• †Stantonella
  • †Stantonella interrupta
  • †Stantonella ripleyana
• †Stephanophyllia
  • †Stephanophyllia cribraria
• Stosicia
  • †Stosicia antiqua
• †Streptacis – tentative report
  • †Streptacis bogradi
• Striarca
  • †Striarca prebrevis
  • †Striarca richardsi
  • †Striarca saffordi
  • †Striarca umbonata
• †Striaticostatum
  • †Striaticostatum asperum
  • †Striaticostatum bexarense
  • †Striaticostatum congestum
  • †Striaticostatum griffini
  • †Striaticostatum harbisoni
  • †Striaticostatum micropunctatum
  • †Striaticostatum sparsum
• Sulcoretusa
  • †Sulcoretusa spinosa
• †Syncyclonema
  • †Syncyclonema simplicius

• Teinostoma
  • †Teinostoma prenanum

• 

  Tellina
• †Tellinimera
  • †Tellinimera buboana
  • †Tellinimera gabbi
• †Tenea
  • †Tenea parilis
• †Tenuipteria
  • †Tenuipteria argentea
  • †Tenuipteria argenteus
• †Tetracarcinus
  • †Tetracarcinus subquadratus
• †Texanites
  • †Texanites gallicus
• Thracia
• †Thylacus
  • †Thylacus cretaceus
• †Titanosarcolites
• †Tornatellaea
  • †Tornatellaea cretacea
• †Tornus – tentative report
  • †Tornus planocarinatus
• †Trachybaculites
  • †Trachybaculites columna

• 

  Trachycardium
  • †Trachycardium carolinensis
  • †Trachycardium eufaulensis
• Trichotropis
  • †Trichotropis mississippiensis
  • †Trichotropis squamosa

• 

  †Trigonia

• 

  †Trigonostoma
  • †Trigonostoma ripleyana
• †Trobus
  • †Trobus buboanus
  • †Trobus corona
• Trochocyathus
  • †Trochocyathus speciosus – type locality for species
• †Tundora
  • †Tundora tuberculata
• †Turbinopsis
  • †Turbinopsis curta – or unidentified comparable form
• Turboella
  • †Turboella crebricostata
• †Turrilites
  • †Turrilites peruviana – or unidentified comparable form

• 

  Turritella
  • †Turritella bilira
  • †Turritella chalybeatensis
  • †Turritella chapelvillensis
  • †Turritella hilgardi
  • †Turritella howelli
  • †Turritella paravertebroides
  • †Turritella quadrilira
  • †Turritella tippana
  • †Turritella trilira
  • †Turritella vertebroides
• †Tympanotonus
  • †Tympanotonus trilirus

• †Uddenia
• †Unicardium
  • †Unicardium concentricum
• †Urceolabrum
  • †Urceolabrum mantachieensis
  • †Urceolabrum tuberculatum
  • †Urceolabrum tuberculatum callistum

• †Variseila
  • †Variseila meeki
• †Veniella
  • †Veniella conradi
• †Vetericardiella
  • †Vetericardiella crenalirata
  • †Vetericardiella webbervillensis
• †Volutomorpha
  • †Volutomorpha aspera
  • †Volutomorpha dumasensis
  • †Volutomorpha producta
  • †Volutomorpha retifera
  • †Volutomorpha splendida
  • †Volutomorpha valida

• †Weeksia
  • †Weeksia amplificata
  • †Weeksia deplanata

• 

  †Xiphactinus
  • †Xiphactinus audax

• †Zikkuratia
  • †Zikkuratia tabanneensis

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved December 17, 2021.