List of the Paleozoic life of Arkansas

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This list of the Paleozoic 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 541 and 252.17 million years of age.

A[]

  • †Adnatoceras
    • †
  • †
    • †
  • †Amphiscapha
    • †
  • †Amphissites
    • †
  • †
    • † – type locality for species
  • †
    • † – type locality for species
  • †Amplexus
  • †Ananaspis
  • †
    • †
  • †
    • †
  • †
    • † – type locality for species
    • †
  • † – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Anthracoceras
    • †
  • †
    • † – type locality for species
  • †
  • †
  • †
    • †
  • †Aphelaeceras
    • † – type locality for species
  • † – tentative report
  • †
    • †
  • †
    • † – type locality for species
    • † – type locality for species
    • † – tentative report
  • †Arcanoceras
    • † – type locality for species
  • †Archaeocidaris
  • Archaeolithophyllum – tentative report
  • †
    • † – type locality for species
  • Fossils of the Carboniferous-Permian bryozoan Archimedes
    †Archimedes
  • †Archimylacris
    • † – type locality for species
  • †
    • †
  • †Arkanites
    • †
  • †
    • †
  • † – type locality for genus
    • † – type locality for species
  • †
  • †
    • † – or unidentified comparable form
  • †Athyris
  • †Atrypa
  • †
    • †
  • Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten
    †Aviculopecten
    • †Aviculopecten inspeciosus
    • †Aviculopecten jennyi
    • †Aviculopecten morrowensis
    • †Aviculopecten squamula
  • † Avonia
    • †
  • †Axinolobus
    • † – type locality for species

B[]

  • †
    • †
    • †
    • †
    • †
  • †Bactritimimus
    • † – type locality for species
    • † – type locality for species
  • †
    • † – type locality for species
    • †
  • †
    • †
    • †
  • †Baschkirites
    • †
  • †Beecheria
  • †Bellerophon
    • †Bellerophon welshi
  • †Bisatoceras
    • †
  • †Bistrialites
    • † – type locality for species
  • †
    • †
  • †
  • †
    • †
  • †
    • † – type locality for species
  • †
    • †
    • †
  • †
  • †
    • † – type locality for species
  • †Branneroceras
    • †
  • †
    • † – type locality for species
  • †
    • †
  • †

C[]

  • †Cancelloceras
    • † – type locality for species
    • † – type locality for species
  • †
    • †
    • †
    • † – or unidentified comparable form
  • †
    • †
  • †
    • †
  • † – tentative report
    • †
  • †
  • †
  • †Cavusgnathus
  • †
    • †
  • †
    • †
  • †
    • †
  • Fossil of the Cambrian-Middle Devonian trilobite Cheirurus
    †Cheirurus
    • † – type locality for species
    • † – type locality for species
  • †
    • †
  • †Chonetes
  • †
    • †
  • †Cleiothyridina
  • †
    • †
  • †
    • † – type locality for species
  • †
    • †
  • †
    • †
  • †
    • †
  • Fossilized shell of the Late Devonian-Permian brachiopod Composita
    †Composita
  • †
  • †
  • †
    • †
  • †Cornuproetus
    • † – type locality for species
  • †
  • †
    • †
  • †Cravenoceras
    • † – type locality for species
  • †
  • †
    • †
    • †
  • †
    • † – type locality for species
  • †Crurithyris
    • †
  • †
    • † – type locality for species
  • †
    • †
    • †
  • †
  • †
    • †
    • †
  • †
    • †
  • † – report made of unidentified related form or using admittedly obsolete nomenclature
  • †
    • †
  • †Cypricardinia – tentative report
    • †
  • †

D[]

  • †Dalmanites – type locality for genus
    • †
    • †
    • † – type locality for species
  • †
    • † – type locality for species
    • †
  • Life restoration of two species of the Silurian trilobite Deiphon
    †Deiphon
    • †
  • †
    • †
  • †Delops
  • †
    • †
    • †
    • †
    • †
  • †
    • † – type locality for species
  • †
  • †
    • † – type locality for species
    • †
  • Fossil and mold of the Late Ordovician-Silurian trilobite Diacalymene
    †Diacalymene
    • †
  • †
    • †
  • †Diaphragmus
  • †
    • †
  • †Dicoelosia
    • †
  • †
  • †
    • † – or unidentified comparable form
    • †
  • †
    • †
  • †Dolerorthis – tentative report
    • †
  • †Dolorthoceras
    • † – or unidentified comparable form
    • † – type locality for species
    • † – type locality for species

E[]

  • †Echinaria
  • †
  • † – type locality for genus
    • † – type locality for species
  • † – type locality for genus
    • † – type locality for species
  • †
    • †
  • †
    • †
  • Fossil of the Middle Ordovician-Early Devonian trilobite Encrinurus
    †Encrinurus
    • †Encrinurus egani
  • †Endolobus
    • †
  • †
    • †
  • †Eophacops
    • † – type locality for species
  • †
    • †
  • †Eospirifer
    • †
  • †Eowellerites
    • † – type locality for species
    • † – or unidentified comparable form
  • †
    • †
  • †
    • † – type locality for species
    • † – type locality for species
    • † – type locality for species
  • Fossilized calyx of the Silurian-Middle Devonian crinoid ("sea lily") Eucalyptocrinites
    †Eucalyptocrinites
  • †
  • †
    • † – or unidentified related form
    • †
  • †
    • † – type locality for species
    • †
  • †
  • †
    • †
    • † – type locality for species
    • † – or unidentified comparable form
  • Fossilized shell of the Silurian-Permian sea snail Euomphalus
    †Euomphalus
    • † – type locality for species
    • † – type locality for species
  • †
    • † – or unidentified comparable form
  • †Euphemites
    • † – type locality for species
    • † – type locality for species

F[]

  • †
    • † – type locality for species
  • †
    • †
    • †

G[]

  • † – tentative report
  • †Gastrioceras
    • †
    • †
    • † – type locality for species
  • Fossil of the bore-hole ichnogenus Gastrochaenolites (G)
    Gastrochaenolites
    • †
  • †
  • † – tentative report
    • †
  • †
    • † – type locality for species
  • †
    • † – type locality for species
  • †Girvanella
  • †
    • †
    • † – type locality for species
    • † – type locality for species
    • † – type locality for species
    • †
  • †
    • †
    • † – type locality for species
    • †
  • †
    • † – type locality for species
  • †
  • Fossil of the Silurian trilobite Glyptambon
    †Glyptambon – type locality for genus
    • †
  • †Glyptopleura
    • †
    • †
  • †Gnathodus
    • †
  • †Goniatites
  • †
    • †
    • †
  • †
    • †
  • †Graphiadactyllis
    • †
    • †

H[]

  • †
    • †
  • †
    • † – type locality for species
    • †
  • †
  • †Hematites
    • †
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  • †
    • †
    • † – type locality for species
  • †
    • †
  • †
    • †
  • †
    • †
  • †
  • †
  • † – tentative report

I[]

  • †
    • † – type locality for species
  • † – type locality for genus
    • † – type locality for species
  • †
    • †
  • † – type locality for genus
    • † – type locality for species
  • †
    • †
  • †
    • †
  • †Irvingella
    • †

J[]

  • † – report made of unidentified related form or using admittedly obsolete nomenclature
  • †
    • †

K[]

  • †
    • †
  • †Kazakhstania – tentative report
  • †
    • †
  • †
    • †
  • †
    • †
  • †
    • †
  • †
    • † – type locality for species
    • †
  • †
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    • †
  • †

L[]

  • †
    • †
    • †
  • †
    • †
  • †
    • †
  • †
    • †
  • †
    • † – type locality for species
  • †Leptaena
  • †
  • †
    • †
    • †
  • †
  • †
  • †Lingula
  • †Linoproductus
  • †Liroceras – tentative report
  • †
    • †
  • †
  • † – tentative report
  • †
    • † – type locality for species
  • †
    • †
  • †
    • †
  • †
    • †
    • †
  • † – type locality for genus
    • † – type locality for species
    • †
    • † – type locality for species
  • † – or unidentified related form

M[]

  • †
    • †
    • †
  • †
  • †
  • †
  • †Mariceras
  • †
    • † – type locality for species
    • † – type locality for species
  • †
    • †
  • †
    • † – type locality for species
  • †
    • †
  • †Meristina
    • †
  • Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras
    †Metacoceras
  • †
    • †
  • †
    • †
  • †
    • † – type locality for species
  • †
    • † – type locality for species
    • †
    • †
  • †Michelinoceras
    • †
  • † – tentative report
  • †
    • †
    • † – type locality for species
    • †
    • † – type locality for species
  • †
  • †
    • † – type locality for species
  • †
    • †
  • †
    • † – type locality for species
    • † – type locality for species
    • † – type locality for species
  • †
  • †
    • † – or unidentified comparable form

N[]

  • †Naiadites – tentative report
  • Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis
    †Naticopsis
    • † – or unidentified comparable form
    • †
  • †
  • †
    • †
    • †
  • †
  • †
    • †
  • †
    • †
  • †
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O[]

  • †
    • †
  • †
    • †
    • †
    • †
    • †
    • †
  • †
  • †
    • †
  • †
    • †
  • †
    • †
    • †
  • †
    • †
  • †
  • † – tentative report
    • †
  • †
  • †
    • †
  • †Ozarcus – type locality for genus
    • †Ozarcus mapesae – type locality for species

P[]

  • †Pachylyroceras
    • †
    • †
  • †Paladin
    • †Paladin mucronatus
  • †
    • †
  • †
    • †
  • †
    • †
  • †Paleoconus
    • † – type locality for species
  • †
    • † – type locality for species
    • † – type locality for species
  • †
    • † – type locality for species
  • †
    • † – type locality for species
  • †
    • †
  • †
  • †Paralegoceras
    • †
    • †
  • †
    • † – or unidentified comparable form
  • †
    • † – type locality for species
  • † – tentative report
    • †
  • †
    • †
  • †
    • †
  • †
    • †
    • † – type locality for species
    • † – type locality for species
  • Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites
    †Pentremites
  • †
  • †
  • †
    • †
  • †Peripetoceras
    • † – type locality for species
  • †
  • †
    • †
    • † – type locality for species
  • †
  • †Phestia
    • † – type locality for species
    • † – type locality for species
    • † – type locality for species
  • †
  • †
    • †
  • †
    • †
  • †
    • †
    • †
  • Fossilized shell of the Silurian-Early Triassic sea snail Platyceras
    †Platyceras
    • †
    • † – type locality for species
  • †
    • †
  • †Plectodonta – tentative report
  • †Plicochonetes
  • †
    • †
  • †
    • †
  • †Posidonia
    • †
  • †
    • †
  • †Productus
  • Restoration of the Silurian trilobite Proetus
    †Proetus
    • †
  • †
    • † – or unidentified comparable form
  • †
    • †
  • †
    • †
  • †
    • † – type locality for species
    • † – or unidentified comparable form
  • †
    • †
    • †
  • †
    • †
  • †
    • †
  • †
    • †
    • †
  • †
    • †
    • † – type locality for species
  • †
  • †
    • †
  • †
    • † – type locality for species
  • †
  • †
    • †
  • †
    • †

Q[]

R[]

  • †
  • †
  • †
    • †
  • †Rayonnoceras
    • † – type locality for species
    • †
    • † – or unidentified comparable form
    • † – or unidentified comparable form
    • † – type locality for species
    • †
    • †
  • †
  • †
  • †
  • †
    • †
    • †
    • †
  • †
    • † – type locality for species
    • † – type locality for species
    • † – type locality for species
    • †
  • †
    • †
    • † – or unidentified related form
    • † – type locality for species
  • †
    • †
  • †
    • † – or unidentified related form
  • †Rhipidomella
  • †
  • †
    • †
  • †
    • †
    • †
  • †Roundyella
    • †

S[]

  • †
  • †
    • † – tentative report
  • †
    • †
    • †
  • †
    • †
  • †
    • †
  • †
  • †Schizodus
    • †
  • †Schizophoria
  • †
  • †
    • †
  • †
    • †
  • †
  • †
  • †
  • †
    • †
  • †
    • † – or unidentified comparable form
  • †
    • †
  • †
  • †Solenochilus
    • † – type locality for species
    • † – or unidentified comparable form
  • †Solenomorpha
    • †
  • † – type locality for genus
    • † – type locality for species
  • Fossil of the Middle Ordovician-Silurian trilobite Sphaerexochus
    †Sphaerexochus
    • † – type locality for species
  • †
    • †
    • †
    • †
    • † – type locality for species
    • †
  • Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer
    †Spirifer
  • †
  • †
    • † – type locality for species
    • † – type locality for species
  • †Stearoceras
    • † – or unidentified related form
    • † – type locality for species
  • †
    • † – type locality for species
    • † – type locality for species
  • †
  • †
    • † – type locality for species
  • Fossil preserved in situ of a Carboniferous tree-like club moss relative with attached Stigmaria rhizome system
    †Stigmaria
    • †
  • †
    • † – type locality for species
  • †
    • †
  • †
  • †
  • †Stroboceras
    • † – type locality for species
    • † – or unidentified comparable form
  • †
  • †
  • †
    • † – type locality for species
    • †
  • †Sutherlandia
  • †
    • †
    • †
    • †
  • †
    • † – type locality for species

T[]

U[]

  • †
    • †

V[]

  • †Valhallites
    • † – type locality for species
    • † – type locality for species
    • † – type locality for species
  • †
    • †
  • † – type locality for genus
    • † – type locality for species
  • †
    • †
  • †
  • †
    • †

W[]

  • †
    • †
  • †
    • † – type locality for species
  • †Wilkingia
    • † – or unidentified comparable form
  • †
    • † – type locality for species

X[]

  • †
    • †

Y[]

  • †
    • †

Z[]

  • †
    • †
  • †
  • †Zygopleura – report made of unidentified related form or using admittedly obsolete nomenclature

References[]

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021. {{cite web}}: |author= has generic name (help)
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