List of the Mesozoic life of Arkansas

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

A

 * †Acutostrea
 * †Acutostrea plumosa
 * †Aechmella
 * †Aechmella ozanensis – type locality for species
 * Alderina
 * †Alderina inuber – type locality for species
 * †Ambigostrea
 * †Ambigostrea tecticosta
 * †Anchura
 * Anomia ephippium.jpg †[[Anomia (genus)|Anomia]]
 * †Anomia argentaria
 * †Anomia texana
 * †Aphrodina
 * †Aphrodina tippana
 * †Atreta

B

 * †Baculites
 * †Baculites crickmayi
 * †Baculites ovatus
 * †Baculites reduncus
 * †Baculites taylorensis
 * †Baculites undatus
 * †Bellifusus
 * †Bellifusus spinosus
 * Botula
 * †Botula conchafodentis
 * Sauropod Footprint.jpg †[[Brontopodus]]
 * †Brontopodus birdi
 * †Buccinopsis
 * †Buccinopsis solida

C

 * Cadulus
 * †Cadulus obnutus
 * Caestocorbula
 * †Caestocorbula crassaplica
 * †Caestocorbula crassiplica
 * †Camptonectes
 * †Camptonectes bubonis
 * †Cardiaster
 * †Cardiaster deciper – type locality for species
 * Caryophyllia2610.jpg [[Caryophyllia]]
 * †Caryophyllia konincki
 * †Castanopora
 * †Castanopora spooneri
 * †Chedighaii – type locality for genus
 * †Chedighaii barberi – type locality for species
 * †Cheethamia – type locality for genus
 * †Cheethamia howei – type locality for species
 * †Cirroceras
 * †Cirroceras conradi
 * †Classopollis
 * †Classostrobus
 * †Classostrobus arkansensis
 * Cliona
 * Corbicula
 * †Corbicula arkansensis
 * Crassatella
 * †Crassatella vadosa
 * †Crenella
 * †Crenella serica
 * Cucullaea labiata 3.JPG [[Cucullaea]]
 * †Cucullaea capax
 * Cylichna
 * †Cymella
 * †Cymella bella
 * †Cyprimeria
 * †Cyprimeria alta
 * †Cyprimeria coonensis

D

 * †Dentalium
 * †Dentalium leve
 * †Desmophyllites
 * †Desmophyllites diphylloides
 * †Dhondtichlamys
 * †Dhondtichlamys venustus
 * †Diacanthopora
 * †Diacanthopora langi – type locality for species
 * †Didymoceras
 * †Didymoceras binodosum
 * †Didymoceras clardyi
 * †Didymoceras cochleatum
 * †Didymoceras donezianum
 * †Didymoceras draconis
 * †Didymoceras mortoni
 * †Didymoceras platycostatum
 * †Didymoceras tortum
 * †Dionella
 * †Dionella racemata – type locality for species
 * †Dionella vivistratensis – type locality for species
 * DiscoscaphitesirisCretaceous.jpg †[[Discoscaphites]]
 * †Discoscaphites conradi
 * †Douvilleiceras

E

 * †Echinocorys
 * †Echinocorys texanus
 * Ellisina
 * †Ellisina saratogaensis – type locality for species
 * †Escharoides – tentative report
 * †Escharoides danei – type locality for species
 * †Escharoides erymnos – type locality for species
 * †Eutrephoceras
 * Exogyracostata.JPG †[[Exogyra]]
 * †Exogyra costata
 * †Exogyra ponderosa

F

 * †Flemingostrea
 * †Flemingostrea subspatula
 * †Frurionella
 * †Frurionella parvipora

G

 * Gaudryceratidae - Gaudryceras species.JPG †[[Gaudryceras]]
 * †Granocardium
 * †Granocardium bowenae
 * †Granocardium tholi
 * †Gryphaeostrea
 * †Gryphaeostrea vomer

H

 * Hemiaster
 * †Hemiaster humphreysanus
 * †Hemiaster wetherbyi
 * †Heminautilus
 * †Heminautilus stantoni – type locality for species
 * Hoploscaphites ammonite.jpg †[[Hoploscaphites]]
 * †Hoploscaphites pumilis

I

 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[Inoceramus]]
 * †Isomicraster
 * †Isomicraster danei – type locality for species

J

 * Ammonite Jeletzkytes.jpg †[[Jeletzkytes]]
 * †Jeletzkytes nodosus

L

 * †Lewyites
 * †Lewyites oronensis
 * Limatula
 * †Limatula acutilineata
 * †Linthia
 * †Linthia variabilis

M

 * Malletia
 * †Malletia longfrons
 * †Malletia longifrons
 * †Mathilda
 * †Mathilda ripleyana – or unidentified related form
 * †Menuites
 * †Menuites portlocki – or unidentified comparable form
 * †Micrabacia
 * †Micrabacia arkansasensis – type locality for species
 * Micraster.jpg †[[Micraster]]
 * †Micraster americanus
 * Micropora – tentative report

N

 * †Naomichelys
 * †Neancyloceras
 * †Neancyloceras bipunctatum – or unidentified comparable form
 * Nostoceras species cropped.jpg †[[Nostoceras]]
 * †Nostoceras approximans
 * †Nostoceras archiacianum
 * †Nostoceras arkansanum
 * †Nostoceras colubriformis
 * †Nostoceras helicinus
 * †Nostoceras hyatti
 * †Nostoceras multituberculatum
 * †Nostoceras pauper
 * †Nostoceras plerucostatum
 * †Nostoceras pulcher
 * Nuculana
 * †Nuculana whitfieldi

O

 * †Oxybeloceras
 * †Oxybeloceras crassum

P

 * †Pachydiscus
 * †Pachydiscus arkansanus
 * Panopea
 * †Panopea subplicata
 * †Placenticeras
 * Platecarpus tympaniticus.jpg †[[Platecarpus]]
 * †Pleuriocardia
 * †Prionochelys – type locality for genus
 * †Prionochelys nauta – type locality for species
 * †Protocardia
 * †Protocardia spillmani
 * †Pseudofrenelopsis
 * †Pseudofrenelopsis parceramosa
 * †Pseudokossmaticeras
 * †Pseudokossmaticeras galicianum
 * †Pseudophyllites
 * †Pseudosaynella
 * †Pseudosaynella fimbriata – type locality for species
 * †Pseudosaynella walcotti
 * †Pteria
 * †Pterotrigonia
 * †Pterotrigonia thoracica
 * Pulvinites
 * †Pulvinites argenteus
 * Pycnodonte
 * †Pycnodonte vesiculare
 * †Pycnodonte vesicularis
 * †Pyropsis

R

 * Ramphonotus
 * †Ramphonotus pedunculatus – type locality for species

S

 * Serpula
 * †Solenoceras
 * †Solenoceras texanum – or unidentified comparable form
 * †Solenophragma
 * †Solenophragma elongatum – type locality for species
 * †Solenophragma ovatum
 * †Sphenodiscus
 * Spondylus.jpg [[Spondylus]]
 * †Stictostega – type locality for genus
 * †Stictostega durhami – type locality for species
 * Striarca
 * †Striaticostatum
 * †Stylina
 * †Stylina arkansasensis – type locality for species
 * †Syncyclonema
 * †Syncyclonema simplicius
 * †Syncyclonema travisanus

T

 * †Tenea
 * †Tenea parilis
 * †Thamnasteria
 * †Thamnasteria imlayi – type locality for species
 * Toxochelys.jpg †[[Toxochelys]] – type locality for genus
 * †Toxochelys latiremis – type locality for species
 * Trachycardium
 * †Trachyscaphites
 * †Trachyscaphites redbirdensis
 * †Tricephalopora
 * †Tricephalopora arkansasensis – type locality for species
 * †Tricephalopora larwoodi – type locality for species
 * Turritella
 * †Turritella bilira
 * †Turritella trilira

U

 * †Uhligella – tentative report

V

 * †Veniella
 * †Veniella conradi

Z

 * Zangerlchelys
 * †Zangerlchelys arkansaw – type locality for species