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
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- †Acutostrea
- †Aechmella
- †Aechmella ozanensis – type locality for species
- Alderina
- †Alderina inuber – type locality for species
- †Ambigostrea
- †Anchura
Interior and exterior of a shell of an Anomia, or jingle shell - †Aphrodina
- †Atreta
B
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- †Baculites
- †Bellifusus
- Botula
Fossil of the sauropod dinosaur footprint ichnogenus Brontopodus - †Buccinopsis
C
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- Cadulus
- Caestocorbula
- †Camptonectes
- †Cardiaster
- †Cardiaster deciper – type locality for species
A living Caryophyllia solitary coral - †Castanopora
- †Chedighaii – type locality for genus
- †Chedighaii barberi – type locality for species
- †Cheethamia – type locality for genus
- †Cheethamia howei – type locality for species
- †Cirroceras
- †Classopollis
- †Classostrobus
- Cliona
- Corbicula
- Crassatella
- †Crenella
Shell of a Cucullaea, or false ark shell - Cylichna
- †Cymella
- †Cyprimeria
D
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- †Dentalium
- †Desmophyllites
- †Dhondtichlamys
- †Diacanthopora
- †Diacanthopora langi – type locality for species
- †Didymoceras
- †Dionella
- †Dionella racemata – type locality for species
- †Dionella vivistratensis – type locality for species
Fossilized shell of the Late Cretaceous ammonoid cephalopod Discoscaphites - †Douvilleiceras
E
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- †Echinocorys
- Ellisina
- †Ellisina saratogaensis – type locality for species
- †Escharoides – tentative report
- †Escharoides danei – type locality for species
- †Escharoides erymnos – type locality for species
- †Eutrephoceras
Interior of a fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra
F
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G
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Fossilized shell of the Cretaceous ammonoid cephalopod Gaudryceras - †Granocardium
- †Gryphaeostrea
H
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- Hemiaster
- †Heminautilus
- †Heminautilus stantoni – type locality for species
Fossilized shell of the Late Cretaceous ammonoid cephalopod Hoploscaphites
I
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Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size - †Isomicraster
- †Isomicraster danei – type locality for species
J
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Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes
L
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M
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- Malletia
- †Mathilda
- †Mathilda ripleyana – or unidentified related form
- †Menuites
- †Menuites portlocki – or unidentified comparable form
- †Micrabacia
- †Micrabacia arkansasensis – type locality for species
Fossilized shell of the Late Cretaceous-Paleogene sea urchin Micraster - Micropora – tentative report
N
Contents
- †Naomichelys
- †Neancyloceras
- †Neancyloceras bipunctatum – or unidentified comparable form
Restoration of several species of the Late Cretaceous ammonoid cephalopod Nostoceras - Nuculana
O
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P
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- †Pachydiscus
- Panopea
- †Placenticeras
Restoration of the Late Cretaceous mosasaur Platecarpus - †Pleuriocardia
- †Prionochelys – type locality for genus
- †Prionochelys nauta – type locality for species
- †Protocardia
- †Pseudofrenelopsis
- †Pseudokossmaticeras
- †Pseudophyllites
- †Pseudosaynella
- †Pseudosaynella fimbriata – type locality for species
- †Pseudosaynella walcotti
- †Pteria
- †Pterotrigonia
- Pulvinites
- Pycnodonte
- †Pyropsis
R
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- Ramphonotus
- †Ramphonotus pedunculatus – type locality for species
S
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- Serpula
- †Solenoceras
- †Solenoceras texanum – or unidentified comparable form
- †Solenophragma
- †Solenophragma elongatum – type locality for species
- †Solenophragma ovatum
- †Sphenodiscus
Shell of a Spondylus, or spiny oyster - †Stictostega – type locality for genus
- †Stictostega durhami – type locality for species
- Striarca
- †Striaticostatum
- †Stylina
- †Stylina arkansasensis – type locality for species
- †Syncyclonema
T
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- †Tenea
- †Thamnasteria
- †Thamnasteria imlayi – type locality for species
Mounted fossilized skeleton of the Late Cretaceous sea turtle Toxochelys - †Toxochelys latiremis – type locality for species
- Trachycardium
- †Trachyscaphites
- †Tricephalopora
- †Tricephalopora arkansasensis – type locality for species
- †Tricephalopora larwoodi – type locality for species
- Turritella
U
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- †Uhligella – tentative report
V
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Z
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- Zangerlchelys
- †Zangerlchelys arkansaw – type locality for species
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
| Lists of the prehistoric life of Arkansas | |
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