page_title: List of the Paleozoic life of Idaho
section_title: A
hierarchical_section_title: List of the Paleozoic life of Idaho / A
caption_attribution_description: English: Atrypa cf reticularis, 26mm along the axis, order Rhynchonellida, family Atrypidae, collected in the	Junkerberg Formation, near Gondelsheim, Eifel, Germany, from the early Middle Devonian (Eifelian)
context_page_description: This list of the Paleozoic life of Idaho contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Idaho and are between 541 and 252.17 million years of age.
context_section_description: †Acrothele
  †Acrothele affinis
  †Acrothele artemis
  †Acrothele parilis – type locality for species
  †Acrothele speciosa – type locality for species
  †Acrothyra
  †Acrothyra minor
  †Acrotreta
  †Acrotreta definita
  †Acrotreta eucharis – type locality for species
  †Acrotreta levata
  †Acrotreta nitens – type locality for species
  †Acrotreta sulcata
  †Adrianites
    †Agnostus
  †Agnostus bonnerensis – type locality for species
  †Agnostus lautus – type locality for species
  †Albertella
  †Albertella sampsoni – type locality for species
  †Allanaria
  †Allanaria engelmanni
  †Alokistocare
  †Alokistocare euchare – type locality for species
  †Alokistocare idahoense
  †Alokistocare laticaudum
  †Alokistocare nactum – type locality for species
  †Alokistocare natale – type locality for species
  †Alokistocare noduliferum – type locality for species
  †Alokistocare normale – type locality for species
  †Alokistocare notatum – type locality for species
  †Alokistocare nothum – type locality for species
  †Alokistocare septum
  †Alokistocare spencense
  †Alokistocarella
  †Alokistocarella occidens – type locality for species
  †Alokistocarella spencei
  †Amblycranium
  †Amblycranium cornutum – type locality for species
  †Amblycranium populus – type locality for species
  †Amblycranium variabile – type locality for species
  †Ambothyris
  †Ambothyris utahensis – type locality for species
  †Amechilus
  †Amechilus palaora – type locality for species
  †Amphipora
  †Amplexizaphrenitis
  †Amplexizaphrentis
  †Amplexograptus
  †Amplexograptus latus – or unidentified related form
  †Amplexograptus manitoulinensis – or unidentified related form
  †Amplexograptus perexcavatus
  †Amplexus
  †Ampyxina
  † Ananias
  †Ananias nevadensis – or unidentified related form
  †Anazyga
  †Anazyga recurvirostra – or unidentified comparable form
  †Ancenochilus
  †Anidanthus
  †Anidanthus echaris
  †Anidanthus eucharis – type locality for species
  †Anomalorthis
  †Anthracospirifer
  †Anthracospirifer arcoensis – type locality for species
  †Anthracospirifer curvilateralis
  †Anthracospirifer leidyi
  †Anthracospirifer occiduus
  †Anthracospirifer shawi
  †Antiquatonia
  †Antiquatonia sulcatus – or unidentified comparable form
  †Apatokephalus – tentative report
  †Apheorthis
  †Apheorthis meeki – or unidentified comparable form
  †Appendispinograptus
  †Appendispinograptus longispinus
  †Apterrinella
  †Arachniograptus
  †Arachniograptus laqueus
  †Archaeocyathus
  Archaeolithophyllum
  †Asaphellus – tentative report
  †Asaphellus eudocia
  †Astartella
  †Astartella subquadrata
  †Asthenospongia – type locality for genus
  †Asthenospongia acantha – type locality for species
   †Atrypa
  †Atrypa oneidensis – type locality for species
  †Atrypa putilla – or unidentified related form
  †Aulopora
  †Auloprotonia
  †Austinella
  †Austinella whitfieldi – or unidentified related form
  †Aviculopecten
  †Aviculopecten kaibabensis – or unidentified comparable form
  † Avonia
caption: Fossilized shell of the Late Ordovician-Carboniferous brachiopod Atrypa
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