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This article needs attention from an expert in Palaeontology. The specific problem is: Several of the genus names (including but not necessarily limited to those tagged as {{dn}}) appear to be invalid. E.g. (1) Sandia, a brachiopod, name preoccupied by a butterfly, possibly now Neosandia or Brasilioproductus. E.g. (2) Cytherea, a mollusc, name preoccupied by a fly, now apparently split into Callista and Neocallista.. WikiProject Palaeontology may be able to help recruit an expert. (May 2018)

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

• 

  †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

• 

  †Dalmanites – type locality for genus
• †Deiphon
• †Delops
• †Diacalymene
• †Dicoelosia
• †Dolorthoceras
• †Echinaria
• †Edmondia
• †Encrinurus
• †Endolobus
• †Eophacops
• †Eospirifer
• †Eowellerites

• 

  †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
• †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

• 

  †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

• 

  †Brontopodus
• Cadulus
• Caestocorbula
  • †Caestocorbula crassaplica
  • †Caestocorbula crassiplica
• Caryophyllia
• †Cirroceras
• Cliona
• Corbicula
• †Crenella
  • †Crenella serica

• 

  Cucullaea
  • †Cucullaea capax
• Cylichna
• †Cymella
• †Dentalium
  • †Dentalium leve
• †Desmophyllites
• †Didymoceras
  • †Didymoceras binodosum
  • †Didymoceras platycostatum
• †Discoscaphites
  • †Discoscaphites conradi
• †Douvilleiceras
• †Echinocorys
• †Eutrephoceras

• 

  †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
• †Protocardia
• †Pteria
• †Pterotrigonia
  • †Pterotrigonia thoracica
• Pycnodonte
  • †Pycnodonte vesicularis
• Serpula
• †Sphenodiscus
• Spondylus
• †Stylina
• †Tenea
• †Thamnasteria

• 

  †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

• 

  †Basilosaurus
  • †Basilosaurus cetoides
• Blarina
  • †Blarina brevicauda
• †Bootherium
  • †Bootherium bombifrons
• Brachidontes
• †Brachyprotoma
  • †Brachyprotoma obtusata
• Bullia
• Caestocorbula
• Canis

  • 

    †Canis armbrusteri
  • †Canis latrans
• Carcharhinus
• Carcharias
• Castor
  • †Castor canadensis
• Cervus
• Chlamys
• Clavilithes
• Coluber

  • 

    †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 – tentative report
• Erethizon
  • †Erethizon dorsatum
• Galeocerdo
• Galeodea
• Galeorhinus
• Geomys
  • †Geomys bursarius
• Ginglymostoma
• Hemipristis
  • †Hemipristis curvatus
• Hemisinus
• Hexaplex

• 

  †Iridomyrmex
  • †Iridomyrmex mapesi – type locality for species
• †Lacunaria
• Latirus
• Lepisosteus
• Lepus
  • †Lepus alleni
  • †Lepus americanus – tentative report
• †Linthia
• Lynx
  • †Lynx rufus
• †Mammuthus

  • 

    †Mammuthus columbi
• Marmota
  • †Marmota monax
• Mephitis
  • †Mephitis mephitis
• Mesalia
• Microtus
• †Miracinonyx
  • †Miracinonyx studeri
• Mustela
  • †Mustela richardsonii
• Myliobatis

• 

  †Mylohyus
  • †Mylohyus fossilis
• Myotis
• Mytilus
• Nassarius
• Neogale
  • †Neogale frenata
  • †Neogale vison
• Neotoma
• Nucula
• Odocoileus
  • †Odocoileus virginianus
• Ondatra
• Ostrea
• †Pachecoa
• Panthera

  • 

    †Panthera onca
• Pekania
• Peromyscus
• Pitar
• Pituophis
• Pitymys
• Pleuromeris
• Polinices

• 

  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
  • †Smilodon fatalis
• Sorex
  • †Sorex cinereus
  • †Sorex fumeus
  • †Sorex minutus
  • †Sorex monticolus
• Spermophilus
  • †Spermophilus tridecemlineatus – tentative report
• Sphyraena
• Spilogale
  • †Spilogale putorius – tentative report

• 

  Spisula
• Sylvilagus
  • †Sylvilagus floridanus – tentative report
• Tamiasciurus
  • †Tamiasciurus hudsonicus
• Terebra
• Teredo
• Trichiurus
• Turritella
• Urocyon

  • 

    †Urocyon cinereoargenteus
• Ursus
  • †Ursus americanus
• Venericardia
• Vulpes
• Yoldia

References

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

• Paleontology in Arkansas
• Lists of prehistoric life in the United States
• Arkansas-related lists