# List of the prehistoric life of Arkansas

This list of the prehistoric life of Arkansas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Arkansas.

## Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Alabama.

## Paleozoic
### Selected Paleozoic taxa of Arkansas

* †Adnatoceras
* †Amphiscapha
* †Amplexus
* †Ananaspis
* †Anthracoceras
* †Aphelaeceras
* †Arcanoceras
* †Archaeocidaris
* Archaeolithophyllum – tentative report
* Fossils of the Carboniferous-Permian bryozoan Archimedes †Archimedes
* †Archimylacris
* †Arkanites
* †Athyris
* †Atrypa
* †Aviculopecten
** †Aviculopecten inspeciosus
** †Aviculopecten jennyi
** †Aviculopecten morrowensis
** †Aviculopecten squamula
* † Avonia
* †Axinolobus
* †Bactritimimus
* †Baschkirites
* †Bellerophon
** †Bellerophon welshi
* †Bisatoceras
* †Bistrialites
* †Branneroceras
* †Cancelloceras
* †Cavusgnathus
* †Cheirurus
* †Chonetes
* †Cleiothyridina
* †Composita
* †Cornuproetus
* †Cravenoceras
* †Cypricardinia – tentative report
* Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites †Dalmanites – type locality for genus
* †Deiphon
* †Delops
* †Diacalymene
* †Dicoelosia
* †Dolorthoceras
* †Echinaria
* †Edmondia
* †Encrinurus
* †Endolobus
* †Eophacops
* †Eospirifer
* †Eowellerites
* Fossilized calyx of the Silurian-Middle Devonian crinoid ("sea lily") Eucalyptocrinites †Eucalyptocrinites
* †Euomphalus
* †Gastrioceras
* Gastrochaenolites
* †Girvanella
* †Glyptambon – type locality for genus
* †Glyptopleura
* †Gnathodus
* †Goniatites
** †Goniatites crenistria – or unidentified related form
* †Hematites
* †Irvingella
* †Kazakhstania – tentative report
* †Lingula
* †Liroceras – tentative report
* †Mariceras
* †Meristina
* Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras †Metacoceras
* †Michelinoceras
* †Naticopsis
* †Ozarcus – type locality for genus
** †Ozarcus mapesae – type locality for species
* †Pachylyroceras
* †Paladin
* †Paleoconus
* †Paralegoceras
* †Pentremites
* †Peripetoceras
* †Platyceras
* †Plectodonta – tentative report
* †Plicochonetes
* †Posidonia
* †Proetus
* †Quinnites
* †Rayonnoceras
* †Sandia
* †Solenochilus
* †Solenomorpha
* Fossil of the Middle Ordovician-Silurian trilobite Sphaerexochus †Sphaerexochus
* †Spirifer
* †Stearoceras
* †Stigmaria
* †Stroboceras
* †Sutherlandia
* †Tesuquea
* †Triboloceras – tentative report
* †Tripteroceroides – tentative report
* Trypanites
* †Tylonautilus
* †Valhallites
* †Wilkingia
* †Zia

## Mesozoic
### Selected Mesozoic taxa of Arkansas

* †Anomia
* †Baculites
** †Baculites crickmayi
** †Baculites ovatus
* Botula
** †Botula conchafodentis
* Fossil of the sauropod dinosaur footprint ichnogenus Brontopodus †Brontopodus
* Cadulus
* Caestocorbula
** †Caestocorbula crassaplica
** †Caestocorbula crassiplica
* Caryophyllia
* †Cirroceras
* Cliona
* Corbicula
* †Crenella
** †Crenella serica
* Shell of a Cucullaea, or false ark shell Cucullaea
** †Cucullaea capax
* Cylichna
* †Cymella
* †Dentalium
** †Dentalium leve
* †Desmophyllites
* †Didymoceras
** †Didymoceras binodosum
** †Didymoceras platycostatum
* †Discoscaphites
** †Discoscaphites conradi
* †Douvilleiceras
* †Echinocorys
* †Eutrephoceras
* Interior of a fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra †Exogyra
** †Exogyra costata
** †Exogyra ponderosa
* †Gaudryceras
* †Heminautilus
* †Hoploscaphites
* †Inoceramus
* †Jeletzkytes
** †Jeletzkytes nodosus
* Limatula
* †Linthia
* †Mathilda
* †Menuites
* †Micraster
* Micropora – tentative report
* †Naomichelys
* †Nostoceras
** †Nostoceras approximans
* †Pachydiscus
* Panopea
* †Placenticeras
* Restoration of the Late Cretaceous mosasaur Platecarpus †Platecarpus
* †Protocardia
* †Pteria
* †Pterotrigonia
** †Pterotrigonia thoracica
* Pycnodonte
** †Pycnodonte vesicularis
* Serpula
* †Sphenodiscus
* Spondylus
* †Stylina
* †Tenea
* †Thamnasteria
* Mounted fossilized skeleton of the Late Cretaceous sea turtle Toxochelys †Toxochelys – type locality for genus
** †Toxochelys latiremis – type locality for species
* Trachycardium
* Turritella
** †Turritella bilira
** †Turritella trilira
* †Uhligella – tentative report

## Cenozoic
### Selected Cenozoic taxa of Arkansas

* Acteon
* Agaronia
* Antalis
* Architectonica
* Arius – or unidentified comparable form
* Astrangia
* Athleta
* Barbatia
* Life restoration of the Eocene whale Basilosaurus †Basilosaurus
** †Basilosaurus cetoides
* Blarina
** †Blarina brevicauda
* †Bootherium
** †Bootherium bombifrons
* Brachidontes
* †Brachyprotoma
** †Brachyprotoma obtusata
* Bullia
* Caestocorbula
* Canis
** Illustration of a fossilized cranium of the Pleistocene Canis armbrusteri, or Armbruster's wolf †Canis armbrusteri
** †Canis latrans
* Carcharhinus
* Carcharias
* Castor
** †Castor canadensis
* Cervus
* Chlamys
* Clavilithes
* Coluber
** A living Coluber constrictor, or eastern racer †Coluber constrictor – or unidentified comparable form
* Conomitra
* Conus
* Corbula
* Crassostrea
* Crotalus
* Cytherea – report made of unidentified related form or using admittedly obsolete nomenclature
* Dasyatis
* Dentalium
* †Diaphyodus
* Epitonium
* Eptesicus
** †Eptesicus fuscus
* Equus
** Restoration of the Pliocene-Holocene horse Equus scotti, or Scott's horse †Equus scotti – tentative report
* Erethizon
** †Erethizon dorsatum
* Galeocerdo
* Galeodea
* Galeorhinus
* Geomys
** †Geomys bursarius
* Ginglymostoma
* Hemipristis
** †Hemipristis curvatus
* Hemisinus
* Hexaplex
* A living Iridomyrmex, or rainbow ant †Iridomyrmex
** †Iridomyrmex mapesi – type locality for species
* †Lacunaria
* Latirus
* Lepisosteus
* Lepus
** †Lepus alleni
** †Lepus americanus – tentative report
* †Linthia
* Lynx
** †Lynx rufus
* †Mammuthus
** Mounted fossilized skeleton of a Mammuthus columbi or Columbian mammoth †Mammuthus columbi
* Marmota
** †Marmota monax
* Mephitis
** †Mephitis mephitis
* Mesalia
* Microtus
* †Miracinonyx
** †Miracinonyx studeri
* Mustela
** †Mustela richardsonii
* Myliobatis
* Fossilized skeleton of the Pliocene-Holocene peccary Mylohyus †Mylohyus
** †Mylohyus fossilis
* Myotis
* Mytilus
* Nassarius
* Neogale
** †Neogale frenata
** †Neogale vison
* Neotoma
* Nucula
* Odocoileus
** †Odocoileus virginianus
* Ondatra
* Ostrea
* †Pachecoa
* Panthera
** A living Panthera onca, or jaguar †Panthera onca
* Pekania
* Peromyscus
* Pitar
* Pituophis
* Pitymys
* Pleuromeris
* Polinices
* A living Pristis sawfish Pristis
* Procyon
** †Procyon lotor
* Propeamussium
* †Protocardia – report made of unidentified related form or using admittedly obsolete nomenclature
* Pseudoliva
* Reithrodontomys
* Retusa
* Scalopus
** †Scalopus aquaticus
* †Sinistrella
* Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon †Smilodon
** †Smilodon fatalis
* Sorex
** †Sorex cinereus
** †Sorex fumeus
** †Sorex minutus
** †Sorex monticolus
* Spermophilus
** †Spermophilus tridecemlineatus – tentative report
* Sphyraena
* Spilogale
** †Spilogale putorius – tentative report
* Shell of a Spisula, or surf clam Spisula
* Sylvilagus
** †Sylvilagus floridanus – tentative report
* Tamiasciurus
** †Tamiasciurus hudsonicus
* Terebra
* Teredo
* Trichiurus
* Turritella
* Urocyon
** A living Urocyon cinereoargenteus, or gray fox †Urocyon cinereoargenteus
* Ursus
** †Ursus americanus
* Venericardia
* Vulpes
* Yoldia