page_title: List of the prehistoric life of Alaska
section_title: Selected Mesozoic taxa of Alaska
hierarchical_section_title: List of the prehistoric life of Alaska / Mesozoic / Selected Mesozoic taxa of Alaska
caption_attribution_description: English: Pachyrhinosaurus pperotorum and Gruipeda vegrandiunis in Alaska[1], by James Havens
context_page_description: This list of the prehistoric life of Alaska contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alaska.
context_section_description: This list of the Mesozoic life of Alaska contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alaska and are between 252.17 and 66 million years of age.
  †Actinoceramus
   †Alaskacephale – type locality for genus
  †Alaskacephale gangloffi – type locality for species
  †Amaltheus
  †Amblydactylus
  †Amoeboceras
  Amusium
  †Anagaudryceras
  †Anagaudryceras auranium
  †Anagaudryceras aurarium
  †Anagaudryceras inflatus
  †Anagaudryceras sacya – type locality for species
  †Anapachydiscus
  †Anapachydiscus nelchinensis – type locality for species
  †Anatomites
  †Anomia
  †Arcestes
  †Archaeocidaris – tentative report
  †Arcthoplites
  Arctica – tentative report
   †Arcticoceras
  †Arctocephalites
  †Arctocephalites alticostus
  †Arctocephalites costidensus – type locality for species
  †Arctocephalites pompeckji
  †Arctoceras
  †Arieticeras
  †Arnioceras
  †Arpadites – tentative report
  †Aspenites
  Astarte
  †Asthenoceras
  †Aviculopecten
  †Baculites
  †Belemnites
  †Bradfordia
   †Cadoceras
  †Cadoceras bathomphalum – type locality for species
  †Cadoceras catostoma
  †Cadoceras chinitnense – type locality for species
  †Cadoceras comma – type locality for species
  †Cadoceras crassicostatum – type locality for species
  †Cadoceras doroschini
  †Cadoceras glabrum – type locality for species
  †Cadoceras grewingki
  †Cadoceras kialagvikense – type locality for species
  †Cadoceras petelini
  †Cadoceras schmidti
  †Cadoceras tenuicostatum – type locality for species
  †Cadoceras wosnessenskii
   †Calliphylloceras
  †Calliphylloceras aldersoni – or unidentified comparable form
  †Calliphylloceras freibrocki – type locality for species
  †Calliphylloceras nizinanum – type locality for species
  †Calycoceras
  Capulus – tentative report
  Cardinia
  Cardita – tentative report
  †Cenoceras
  †Ceratites
  Cerithium – tentative report
  Chlamys
  †Chondrites – tentative report
  †Chonetes – tentative report
  Cidaris – tentative report
  †Cimolodon
   Cladophlebis
  †Cladophlebis hirta – tentative report
  †Claraia
  †Claraia stachei
  †Cleoniceras
  †Collonia
  †Corum
  †Cosmonautilus – tentative report
  †Ctenophyllum
  †Cylindroteuthis
   †Dactylioceras
  †Dactylioceras commune – or unidentified comparable form
  †Daonella
  †Daxatina
  †Dentalium
  †Desmoceras
  †Desmophyllites
  †Didymoceras
  †Didymoceras hornbyense – or unidentified related form
  †Docidoceras
  †Docidoceras camachoi – type locality for species
  †Docidoceras longalvum – or unidentified related form
  †Docidoceras paucinodosum – type locality for species
  †Douvilleiceras
  †Dromaeosaurus
  †Dromaeosaurus albertensis
  †Edmontonia
   †Edmontosaurus – or unidentified related form
  †Edmontosaurus saskatchewanensis
  †Ellisonia
  †Epigondolella
  †Euaptetoceras
  †Eubostrychoceras
  †Eudmetoceras
  †Euomphaloceras
  †Euomphalus
  †Fresvillia
  †Gaudryceras
  †Germanonautilus
  †Gervillia
  Ginkgo
   †Ginkgo adiantoides - or unidentified loosely related form
  Gleichenia
  †Gryphaea
  †Gryphaea arcuataeformis
  †Gryphaea arcusta – or unidentified comparable form
  †Gryphaea cymbium – or unidentified comparable form
  †Gryphaea impressimarginata
  †Gryphaea keilhaui – or unidentified comparable form
  †Gryphaea rockymontana
  Guttulina
  †Gymnocodium
  †Hamulus – tentative report
  †Hebetoxyites
   †Hesperornis
  †Heterastridium
  †Hildaites – tentative report
  †Hypophylloceras
  †Inoceramus
  †Inoceramus comancheanus
  †Inoceramus cuvieri – or unidentified comparable form
  †Inoceramus elegans – or unidentified related form
  †Inoceramus eximius
  †Inoceramus hobetsensis – or unidentified related form
  †Inoceramus mamatensis – or unidentified related form
  †Inoceramus naumanni – or unidentified comparable form
  †Inoceramus porrectus – or unidentified comparable form
  †Inoceramus schmidti
  †Inoceramus subundatus – or unidentified comparable form
  †Inoceramus teshioensis – or unidentified related form
  †Inoceramus yokoyamai – or unidentified comparable form
  †Isastrea – tentative report
  Isognomon – tentative report
  †Joannites
  †Kepplerites
  †Kosmoceras
  †Kosmoceras spinosum – or unidentified comparable form
  Lima
  †Lobites
  †Lucina
   †Lytoceras
  †Lytoceras eudesianum – or unidentified related form
  †Lytoceras fimbriatum – or unidentified comparable form
  Margarites
  
caption: Life restoration of two of the Late Cretaceous horned dinosaur Pachyrhinosaurus perotorum
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