page_title: List of the Paleozoic life of Oklahoma
section_title: A
hierarchical_section_title: List of the Paleozoic life of Oklahoma / A
caption_attribution_description: Fossil of the plant species Annularia stellata, Upper-Carboniferous. Collection of the Universiteit Utrecht.
context_page_description: This list of the Paleozoic life of Oklahoma contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oklahoma and are between 541 and 252.17 million years of age.
context_section_description: †Abludoglyptocrinus
  †Abyssocrinus
  †Abyssocrinus antiquus
  †Abyssomedon – type locality for genus
  †Abyssomedon williamsi – type locality for species
  †Acanthobolbina
  †Acanthobolbina loeblichi
  †Acanthocladia
  †Acanthocladia ouachitensis
  †Acanthocrania
  †Acanthocrania erecta
  †Acanthocrania oklahomensis
  †Acanthocrania subquadrata
  †Acanthopecten
  †Acanthopecten grandis – type locality for species
  †Acanthospirina
  †Acanthotriletes
  †Acheloma
  †Acheloma cumminsi – or unidentified comparable form
  †Acheloma dunni – type locality for species
  †Acidiphorus
  †Acidiphorus williamsi – or unidentified comparable form
   †Acleistorhinus – type locality for genus
  †Acleistorhinus pteroticus – type locality for species
  †Acolocrinus
  †Acolocrinus crinerensis
  †Actinotodissus
  †Actinotodissus longitaleosus
  †Adairia
  †Adairia adairensis – type locality for species
  †Adornofusa
  †Adornofusa microhapsis
  †Aechmina
  †Aechmina geneae
  †Aechmina longispina
  †Aechmina truncata – tentative report
  †Aechminaria
  †Aechminaria ambigua
  †Aechminaria longispina
  †Aechminaria truncata – tentative report
  †Aechminella
  †Aechminella buchanani – type locality for species
  †Aechminella trispinosa – type locality for species
  †Affinocrinus
  †Affinocrinus grandis – type locality for species
  †Affinocrinus normalis
  †Affinocrinus orbis – type locality for species
  †Affinocrinus politus – type locality for species
  †Affinocrinus progressus – type locality for species
  †Alatisporites
  †Alatisporites pustulatus
  †Albertoceras
  †Albertoceras minimum
  †Alcimocrinus
  †Alcimocrinus girtyi
   †Alethopteris
  †Alethopteris ambigua
  †Alethopteris lesquereuxii
  †Alethopteris serlii
  †Alethopteris sullivantii
  †Alexandrinia
  †Alexandrinia directa – type locality for species
  †Alisporites
  †Alisporites aequus – type locality for species
  †Alisporites zapfei
  †Allocrinus
  †Allocrinus divergens
  †Allocrinus globulus
  †Allocrinus irroratus
  †Alloiopteris
  †Allorisma
  †Allorisma albequus
  †Allorisma maynardwhitei – type locality for species
  †Allorisma snideri – type locality for species
  †Allotropiophyllum – or unidentified comparable form
  †Amarixys
  †Amarixys gracilis
  †Amaurotoma – tentative report
  †Amaurotoma knighti – type locality for species
  †Ameura
  †Ameura major
  Ammobaculites
  Ammodiscus
  †Ammovertella
  †Ammovertella inversa
  †Ampelocrinus
  †Ampelocrinus convexus
  †Amphilichas
  †Amphilichas subpunctatus
  †Amphipsalidocrinus
  †Amphiscapha
  †Amphiscapha catilloides
  †Amphisella
  †Amphissites
  †Amphissites bradfieldi – type locality for species
  †Amphissites bushi – type locality for species
  †Amphissites marginiferus
  †Amphissites miseri – type locality for species
  †Amphissites nodosus
  †Amphissites rugosus
  †Amphissites wapanuckensis
  †Amphistrophia
  †Amphistrophia prolongata
  †Amsdenina
  †Amsdenoides
  †Amygdalocystites
  †Amygdalocystites florealis
  †Amygdalocystites tribrachiatus
  †Anabathra
  †Anabathra pulcherrima
  †Anachoropteris
  †Anachoropteris gillotii
  †Anachoropteris involuta
  †Anachroropteris
  †Anachroropteris involuta
  †Ananaspis
  †Ananaspis guttulus
  †Anapiculatasporites
  †Anapiculatasporites spinosus
  †Anapiculatisporites
  †Anapiculatisporites edgarensis
  †Anapiculatisporites spinosus
  †Anaplanisporites
  †Anasobella
  †Anastrophia
  †Anastrophia delicata
  †Anastrophia grossa – type locality for species
  †Anataphrus
  †Anataphrus kermiti – type locality for species
  †Anatiferocystis
  †Anatiferocystis papillata
  †Anchicrinus
  †Anchicrinus echinosacculus – type locality for species
  †Anchicrinus planulatus – type locality for species
  †Anchicrinus rugosus
  †Ancistrorhyncha
  †Ancistrorhyncha costata
  †Ancistrorhyncha globularis
  †Ancoradella
  †Ancoradella ploeckensis
  †Anematina
  †Angelosaurus
  †Angelosaurus romeri – type locality for species
  †Anguisporites
  †Anguisporites contortus – type locality for species
  †Anguisporites intonsus – type locality for species
  † Anisophyllum
    †Annularia
  †Annularia sphenophylloides
  †Annularia stellata
  †Anobasicrinus
  †Anobasicrinus obscurus
  †Anolotichia
  †Anolotichia deckeri
  †Anolotichia impolita
  †Anolotichia spinulifera
  †Anomalogramma
  †Anomalogramma parva
  †Anomalohymen – type locality for genus
  †Anomalohymen dochmus – type locality for species
  †Anomalorthis
caption: Fossil of the Carboniferous horsetail relative Annularia
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