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.

Selected Paleozoic taxa of Arkansas

 * †Adnatoceras
 * †Amphiscapha
 * †Amplexus
 * †Ananaspis
 * †Anthracoceras
 * †Aphelaeceras
 * †Arcanoceras
 * †Archaeocidaris
 * Archaeolithophyllum – tentative report
 * Fenestellidae - Archimedes species.JPG]] †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
 * SilurianTrilobite.jpg †[[Dalmanites]] – type locality for genus
 * †Deiphon
 * †Delops
 * †Diacalymene
 * †Dicoelosia
 * †Dolorthoceras
 * †Echinaria
 * †Edmondia
 * †Encrinurus
 * †Endolobus
 * †Eophacops
 * †Eospirifer
 * †Eowellerites
 * EucalyptocrinitesCalyx.jpg †[[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
 * Metacoceras discoideum 01.jpg †[[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
 * Cheiruridae - Sphaerexochus mirus cropped.jpg †[[Sphaerexochus]]
 * †Spirifer
 * †Stearoceras
 * †Stigmaria
 * †Stroboceras
 * †Sutherlandia
 * †Tesuquea
 * †Triboloceras – tentative report
 * †Tripteroceroides – tentative report
 * Trypanites
 * †Tylonautilus
 * †Valhallites
 * †Wilkingia
 * †Zia

Selected Mesozoic taxa of Arkansas

 * †Anomia
 * †Baculites
 * †Baculites crickmayi
 * †Baculites ovatus
 * Botula
 * †Botula conchafodentis
 * Sauropod Footprint.jpg †[[Brontopodus]]
 * Cadulus
 * Caestocorbula
 * †Caestocorbula crassaplica
 * †Caestocorbula crassiplica
 * Caryophyllia
 * †Cirroceras
 * Cliona
 * Corbicula
 * †Crenella
 * †Crenella serica
 * Cucullaea labiata 3.JPG [[Cucullaea]]
 * †Cucullaea capax
 * Cylichna
 * †Cymella
 * †Dentalium
 * †Dentalium leve
 * †Desmophyllites
 * †Didymoceras
 * †Didymoceras binodosum
 * †Didymoceras platycostatum
 * †Discoscaphites
 * †Discoscaphites conradi
 * †Douvilleiceras
 * †Echinocorys
 * †Eutrephoceras
 * Exogyracostata.JPG †[[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
 * Platecarpus tympaniticus.jpg †[[Platecarpus]]
 * †Protocardia
 * †Pteria
 * †Pterotrigonia
 * †Pterotrigonia thoracica
 * Pycnodonte
 * †Pycnodonte vesicularis
 * Serpula
 * †Sphenodiscus
 * Spondylus
 * †Stylina
 * †Tenea
 * †Thamnasteria
 * Toxochelys.jpg †[[Toxochelys]] – type locality for genus
 * †Toxochelys latiremis – type locality for species
 * Trachycardium
 * Turritella
 * †Turritella bilira
 * †Turritella trilira
 * †Uhligella – tentative report

Selected Cenozoic taxa of Arkansas

 * Acteon
 * Agaronia
 * Antalis
 * Architectonica
 * Arius – or unidentified comparable form
 * Astrangia
 * Athleta
 * Barbatia
 * Basilosaurus cropped.png †[[Basilosaurus]]
 * †Basilosaurus cetoides
 * Blarina
 * †Blarina brevicauda
 * †Bootherium
 * †Bootherium bombifrons
 * Brachidontes
 * †Brachyprotoma
 * †Brachyprotoma obtusata
 * Bullia
 * Caestocorbula
 * Canis
 * Canis armbrusteri skull left lateral.png †[[Canis armbrusteri]]
 * †Canis latrans
 * Carcharhinus
 * Carcharias
 * Castor
 * †Castor canadensis
 * Cervus
 * Chlamys
 * Clavilithes
 * Coluber
 * Coluber constrictor anthicus.jpg †[[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
 * Equus scotti cropped.png †[[Equus scotti]] – tentative report
 * Erethizon
 * †Erethizon dorsatum
 * Galeocerdo
 * Galeodea
 * Galeorhinus
 * Geomys
 * †Geomys bursarius
 * Ginglymostoma
 * Hemipristis
 * †Hemipristis curvatus
 * Hemisinus
 * Hexaplex
 * Meat eater ant feeding on honey02.jpg †[[Iridomyrmex]]
 * †Iridomyrmex mapesi – type locality for species
 * †Lacunaria
 * Latirus
 * Lepisosteus
 * Lepus
 * †Lepus alleni
 * †Lepus americanus – tentative report
 * †Linthia
 * Lynx
 * †Lynx rufus
 * †Mammuthus
 * Columbian mammoth.JPG †[[Mammuthus columbi]]
 * Marmota
 * †Marmota monax
 * Mephitis
 * †Mephitis mephitis
 * Mesalia
 * Microtus
 * †Miracinonyx
 * †Miracinonyx studeri
 * Mustela
 * †Mustela richardsonii
 * Myliobatis
 * Mylohyus nasutus.jpg †[[Mylohyus]]
 * †Mylohyus fossilis
 * Myotis
 * Mytilus
 * Nassarius
 * Neogale
 * †Neogale frenata
 * †Neogale vison
 * Neotoma
 * Nucula
 * Odocoileus
 * †Odocoileus virginianus
 * Ondatra
 * Ostrea
 * †Pachecoa
 * Panthera
 * Jaguar (Panthera onca palustris) male Three Brothers River (cropped) cropped.jpg †[[Panthera onca]]
 * Pekania
 * Peromyscus
 * Pitar
 * Pituophis
 * Pitymys
 * Pleuromeris
 * Polinices
 * Pristis pristis - Georgia Aquarium Jan 2006.jpg [[Pristis]]
 * Procyon
 * †Procyon lotor
 * Propeamussium
 * †Protocardia – report made of unidentified related form or using admittedly obsolete nomenclature
 * Pseudoliva
 * Reithrodontomys
 * Retusa
 * Scalopus
 * †Scalopus aquaticus
 * †Sinistrella
 * Smilodon fatalis.jpg †[[Smilodon]]
 * †Smilodon fatalis
 * Sorex
 * †Sorex cinereus
 * †Sorex fumeus
 * †Sorex minutus
 * †Sorex monticolus
 * Spermophilus
 * †Spermophilus tridecemlineatus – tentative report
 * Sphyraena
 * Spilogale
 * †Spilogale putorius – tentative report
 * Spisula aequilatera (triangle shell).JPG [[Spisula]]
 * Sylvilagus
 * †Sylvilagus floridanus – tentative report
 * Tamiasciurus
 * †Tamiasciurus hudsonicus
 * Terebra
 * Teredo
 * Trichiurus
 * Turritella
 * Urocyon
 * Grey Fox (Urocyon cinereoargenteus).jpg †[[Urocyon cinereoargenteus]]
 * Ursus
 * †Ursus americanus
 * Venericardia
 * Vulpes
 * Yoldia