List of the Mesozoic life of Mississippi

Last updated February 13, 2024

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.

A

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
Fossilized shell of the Late Cretaceous oyster Agerostrea
† Agerostrea
- † Agerostrea mesenterica
† Aliofusus
- † Aliofusus stamineus
Shells in multiple views of Alvania sea snails
Alvania
- † Alvania tallahatchiensis
† Amaurellina
- † Amaurellina stephensoni
† Ambigostrea
- † Ambigostrea tecticosta
Fossilized shell of the Jurassic-Miocene sea snail Ampullina
† 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
A living Architectonica staircase shell sea snail
Architectonica
† Arcoscalpellum
- † Arcoscalpellum bakeri
- † Arcoscalpellum campus
- † Arcoscalpellum withersi
† Arctostrea
- † Arctostrea falacata
Arrhoges
- † Arrhoges plenacosta
† Ascaulocardium
- † Ascaulocardium armatum
Astarte
- † Astarte culebrensis
Ataphrus
- † Ataphrus griffini
Fossilized skeleton of the gar Atractosteus
Atractosteus
† Atreta
- † Atreta melleni

B

Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites
† Baculites
- † Baculites arculus
- † Baculites capensis
- † Baculites grandis – or unidentified comparable form
- † Baculites tippahensis
Shell of a Barbatia , or bearded ark clam
Barbatia
- † Barbatia carolinensis
- † Barbatia lintea
† Bathytormus
- † Bathytormus pteropsis
Fossilized guard of the Late Cretaceous belemnoid cephalopod Belemnitella
† 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
Illustration of the shell in multiple views of a Bittium cerith sea snail
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

C

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
Shells of modern Capulus cap sea snails
Capulus
- † Capulus cuthandensis
- † Capulus spangleri
A living Carcharias sand tiger shark
Carcharias – tentative report
Cardium [ fr; nl; sv ]
- † Cardium spillmani
A living Caryophyllia solitary coral
Caryophyllia
- † Caryophyllia konincki – type locality for species
† Catopygus
- † Catopygus mississippiensis – type locality for species
† Caveola
- † Caveola acuta
Ceratia
Ceratia
- † Ceratia cylindrata
Illustration of a shell of a Cerithiella cerith sea snail
Cerithiella
- † Cerithiella – type locality for species – informal
- † Cerithiella aequalirata
- † Cerithiella chapelvillensis
- † Cerithiella nodoliratum
- † Cerithiella semirugatum
† Cerithioderma
- † Cerithioderma nodosa
Two views of a Cerithium cerith sea snail
Cerithium
- † Cerithium binodosus
- † Cerithium cretaceus
- † Cerithium nodoliratum
- † Cerithium robustus
- † Cerithium semirugatum
- † Cerithium weeksi
Chlamys
- † Chlamys mississippensis
Illustration of a fossil of the Cambrian-modern burrow ichnogenus Chondrites
† Chondrites
Shell and spines of a Cidaris sea urchin
Cidaris
- † Cidaris wahalakensis
† Clarkiella
- † Clarkiella hemispherica
Clavagella
† Clavipholas
- † Clavipholas pectorosa
Cliona
† Clisocolus
- † Clisocolus concentricum
† Coahuilites – tentative report
† Colombellina
- † Colombellina americana
- † Colombellina cancellata
Shell of a Corbula basket clam
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
Fossil of the Early Cretaceous-Eocene shark Cretolamna
† Cretolamna
- † Cretolamna appendiculata
† Cristipluma – type locality for genus
- † Cristipluma mississippiensis – type locality for species
Crucibulum
Shell of a Cucullaea , or false ark shell
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

D

† 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
Fossilized shell of the Late Cretaceous ammonoid cephalopod Discoscaphites
† Discoscaphites
- † Discoscaphites conradi
- † Discoscaphites iris
Shell of a Dolicholatirus sea snail
† Dolicholatirus
- † Dolicholatirus torquatus
† Drepanocheilus
† Drepanochilus
- † Drepanochilus triliratus
† Drilluta
- † Drilluta buboanus
- † Drilluta distans
- † Drilluta lemniscata
- † Drilluta major

E

† Ecclesiogyra
- † Ecclesiogyra heliclina
- † Ecclesiogyra inflata
† Echinimathilda
- † Echinimathilda corona
- † Echinimathilda microstriata
- † Echinimathilda parvula
Illustration of a fossilized shell of the Eocene-Pliocene murex sea snail Ecphora
† Ecphora
- † Ecphora proquadricostata
† Ellipsoscapha
- † Ellipsoscapha mortoni
Restoration of the Early Cretaceous-Eocene bony fish Enchodus , or the "saber-toothed herring"
† 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
Fossil of the crustacean Eryma
† 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
Illustration in multiple views of a fossilized shell of the Late Jurassic-Miocene nautiloid cephalopod Eutrephoceras
† Eutrephoceras
- † Eutrephoceras dekayi
- † Eutrephoceras perlatus
† Exechocirsus
- † Exechocirsus cowickeensis
Fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra
† Exogyra
- † Exogyra costata
- † Exogyra erraticostata
- † Exogyra ponderosa
- † Exogyra upatoiensis

F

† Flemingostrea
- † Flemingostrea subspatula
† Fulgerca
- † Fulgerca attenuata – tentative report
- † Fulgerca compressilirata
† Fusimilis
- † Fusimilis kummeli
- † Fusimilis novemcostatus
- † Fusimilis tippanus
shell of Fusinus inglorius
Fusinus
- † Fusinus macnairyensis

G

† Gegania
- † Gegania bella
- † Gegania bella prodiga
- † Gegania mississippiensis
- † Gegania parabella
Fossilized shell of a Gemmula sea snail, or gem turrid
Gemmula
- † Gemmula cretacea
Fossilized shell of the Carboniferous-Eocene bivalve Gervillia
† Gervillia
† Gervilliopsis
- † Gervilliopsis ensiformis
A living Ginglymostoma nurse shark
Ginglymostoma
- † Ginglymostoma globidens
Glossus
Fossilized shell of a Glycymeris , or bittersweet clam
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
Interior and exterior of a fossilized shell of the Late Triassic-Eocene marine bivalve Gryphaea
† Gryphaea
- † Gryphaea convexa
† Gryphaeostrea
- † Gryphaeostrea vomer
† Gymnentome
- † Gymnentome canalis
- † Gymnentome unicarinata
Gyrineum
† Gyrineum
- † Gyrineum gwinae
Gyrodes
- † Gyrodes abyssinus
- † Gyrodes americanus
- † Gyrodes major
- † Gyrodes petrosus
- † Gyrodes spillmani
- † Gyrodes supraplicatus
† Gyropleura

H

† 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
Fossil of the Jurassic-Paleogene lobster Hoploparia
† Hoploparia
- † Hoploparia tennesseensis
Hyala
- † Hyala fragila
Restoration of two of the Permian-Late Cretaceous cartilaginous fish Hybodus
† Hybodus
† Hydrotribulus
- † Hydrotribulus elegans
† Hyphantoceras – tentative report
- † Hyphantoceras amapondense
† Hypolophus
- † Hypolophus mcnultyi

I

Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
† Inoceramus
- † Inoceramus quadrans – or unidentified comparable form
† Inoperna
† Ischyrhiza
- † Ischyrhiza mira

J

Juliacorbula
- † Juliacorbula monmouthensis

K

† Kummelia

L

† 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
Illustration of a living Lepisosteus , or gar
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
A modern Linuparus spiny lobster
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
Shell of a Lithophaga , or date mussel
Lithophaga
† Lomirosa
- † Lomirosa carinata
† Longitubus
† Longoconcha
- † Longoconcha dalli
- † Longoconcha imbricatus
- † Longoconcha quadrilirata
- † Longoconcha tennesseensis
Fossilized shell of the Triassic-modern marine bivalve Lopha
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

M

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
Fossil of the Late Cretaceous-Eocene sea urchin Micraster
† Micraster
- † Micraster americanus
Fossilized shell of the Devonian-modern marine bivalve Modiolus , or horsemussel
Modiolus
- † Modiolus sedesclaris
- † Modiolus sedesclarus
† Monroea
- † Monroea coffea
† Morea
- † Morea corsicanensis
- † Morea corsicanensis depressa
- † Morea marylandica
- † Morea rotunda
- † Morea transenna
Life restoration of two of the Late Cretaceous Mosasaurus
† Mosasaurus
† Myobarbum
- † Myobarbum laevigatum
Myrtea
- † Myrtea stephensoni
† Mytilus – tentative report

N

† 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
Shell in multiple views of a Nerita polita sea snail
Nerita
- † Nerita reticulirata
Neritina
- † Neritina densata – tentative report
† Nonactaeonina
Restoration of several species of the Late Cretaceous ammonoid cephalopod Nostoceras
† Nostoceras
- † Nostoceras turrilites – tentative report
† Notopocorystes
- † Notopocorystes testacea
Nozeba
- † Nozeba crassa
Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula
Nucula
- † Nucula camia
- † Nucula cuneifrons
- † Nucula percrassa
- † Nucula perequalis
- † Nucula stantoni
Nuculana
- † Nuculana tarensis
- † Nuculana whitfieldi
† Nudivagus
† Nymphalucina
- † Nymphalucina linearia
- † Nymphalucina parva

O

† Odontobasis – tentative report
- † Odontobasis sulcata
† Oligoptycha
- † Oligoptycha corrugata
Opaliopsis
- † Opaliopsis angustocota
† Opertochasma
† Ornopsis
- † Ornopsis digressa
- † Ornopsis elevata
- † Ornopsis modica
Shell of an Ostrea , or oyster
Ostrea
- † Ostrea sloani

P

Fossilized shell of the Late Cretaceous ammonoid cephalopod Pachydiscus
† Pachydiscus
Shell of a Pachymelania freshwater snail
† 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
Fossilized shell of the Early Triassic-Pliocene marine bivalve Pholadomya
Pholadomya
- † Pholadomya occidentalis
† Piestochilus
- † Piestochilus curviliratus
Pinna
- † Pinna laqueata
Fossilized shell of the Late Cretaceous ammonoid cephalopod Placenticeras
† Placenticeras
- † Placenticeras placenta
- † Placenticeras syrtale
† Plagiostoma
- † Plagiostoma woodsi
Restoration of the Late Cretaceous mosasaur Platecarpus
† Platecarpus – type locality for genus
- † Platecarpus tympaniticus – type locality for species
† Plectomya
† Plesiotriton
- † Plesiotriton cretaceus
† Pleuriocardia
- † Pleuriocardia eufaulense
Plicatula
- † Plicatula mullicaensis
- † Plicatula tetrica
Fossilized shell of the Paleocene-modern moon snail Polinices
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
Fossilized teeth of the Cretaceous shark Pseudocorax
† 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
Fossilized shell of the Jurassic-Cretaceous marine bivalve Pterotrigonia
† 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
Assemblage of fossilized shells of the Cretaceous-Pleistocene oyster Pycnodonte
Pycnodonte
- † Pycnodonte belli
- † Pycnodonte mutabilis
- † Pycnodonte vesiculare
- † Pycnodonte vesicularis
† Pyrifusus
- † Pyrifusus sinuocostatus
- † Pyrifusus subdensatus
† Pyropsis
- † Pyropsis cornutus
- † Pyropsis interstriatus
- † Pyropsis perlata
- † Pyropsis prolixa

R

† 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
A living Ringicula sea snail
Ringicula
- † Ringicula clarki
- † Ringicula pulchella
- † Ringicula yochelsoni

S

† Sargana
- † Sargana stantoni
† Sassia
- † Sassia carlea
† Scambula
- † Scambula perplana
Restoration of several of the Early Cretaceous-Miocene shark Scapanorhynchus
† Scapanorhynchus
- † Scapanorhynchus texanus
Fossilized shell of the Late Cretaceous ammonoid cephalopod Scaphites
† Scaphites
- † Scaphites leei
† Sclerorhynchus
† Scobinidola
- † Scobinidola guttatus
Seila
- † Seila quadrilirata
Serpula
† Solariorbis
- † Solariorbis clara
† Solenoceras
† Solyma
- † Solyma levis
Opalized shell of the Late Cretaceous ammonoid cephalopod Sphenodiscus
† Sphenodiscus
- † Sphenodiscus beecheri
- † Sphenodiscus lobatus
- † Sphenodiscus pleurisepta
† Spinaptychus
Spondylus
Life restoration of the Late Cretaceous shark Squalicorax
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

T

Teinostoma
- † Teinostoma prenanum
Shell of a Tellina , or tellin
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
Fossilized shell of a Trachycardium cockle
Trachycardium
- † Trachycardium carolinensis
- † Trachycardium eufaulensis
Trichotropis
- † Trichotropis mississippiensis
- † Trichotropis squamosa
Fossilized shell of the Permian-Paleocene marine bivalve Trigonia
† Trigonia
Shell of a Trigonostoma nutmeg sea snail
† 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
Fossilized shells of the Late Jurassic-modern tower snail Turritella
Turritella
- † Turritella bilira
- † Turritella chalybeatensis
- † Turritella chapelvillensis
- † Turritella hilgardi
- † Turritella howelli
- † Turritella paravertebroides
- † Turritella quadrilira
- † Turritella tippana
- † Turritella trilira
- † Turritella vertebroides
† Tympanotonus
- † Tympanotonus trilirus

U

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

V

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

W

† Weeksia
- † Weeksia amplificata
- † Weeksia deplanata

X

Life restoration of the Cretaceous bony fish Xiphactinus
† Xiphactinus
- † Xiphactinus audax

Z

† Zikkuratia
- † Zikkuratia tabanneensis

References

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

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List of the Mesozoic life of Mississippi

Contents

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

U

V

W

X

Z

References