List of the prehistoric life of Arkansas facts for kids

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