page_title: List of the prehistoric life of Utah
section_title: Selected Mesozoic taxa of Utah
hierarchical_section_title: List of the prehistoric life of Utah / Mesozoic / Selected Mesozoic taxa of Utah
caption_attribution_description: Doswellia kaltenbachi, an archosaur from the Upper Triassic of North America, pencil drawing (after Weems, 1980)
context_page_description: This list of the prehistoric life of Utah contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Utah.
context_section_description: †Abydosaurus – type locality for genus
  †Abydosaurus mcintoshi – type locality for species
  †Acristavus
  †Acristavus gagslarsoni
  †Adelolophus – type locality for genus
  †Adelolophus hutchisoni – type locality for species
  †Adocus
  †Alamosaurus
  †Alamosaurus sanjuanensis
  †Albanerpeton
  †Albanerpeton cifellii – type locality for species
  †Albanerpeton galaktion
  †Albanerpeton gracilis
  †Albanerpeton nexuosus
  †Allocrioceras
   †Allosaurus
  †Allosaurus fragilis
  †Alphadon
  †Alphadon attaragos
  †Alphadon eatoni – type locality for species
  †Alphadon halleyi
  †Alphadon marshi – or unidentified comparable form
  †Alphadon sahnii
  †Amblotherium
  †Ameribaatar – type locality for genus
  †Ameribaatar zofiae – type locality for species
   Amia
  †Anaflemingites
  †Anasibirites
  †Anasibirites angulosus
  †Anasibirites bastini
  †Anasibirites hircinus
  †Anasibirites kingianus
  †Anasibirites mojsisovicsi
  †Anasibirites multiformis
  †Anasibirites tenuistriatus
  †Anchisauripus
  †Anemia
   †Animantarx – type locality for genus
  †Animantarx ramaljonesi – type locality for species
  Anomia
  †Anomoepus
  †Apatopus
  †Apatosaurus
  †Apatosaurus louisae – type locality for species
  †Araeodon
  †Araucarioxylon
  †Arctoceras
  †Arctoprionites
  †Arvinachelys – type locality for genus
  †Aspenites
  Astarte
  Asteriacites
  †Astroconodon
  †Astroconodon delicatus – type locality for species
  †Atreipus
   †Aublysodon – tentative report
  †Baena
  †Barosaurus
  †Barosaurus lentus
  †Basilemys
  †Bernissartia
  †Brachauchenius
  †Brachauchenius lucasi
  †Brachiosaurus
  †Brachyphyllum
  †Brontomerus – type locality for genus
  †Brontomerus mcintoshi – type locality for species
  †Brontopodus
   †Brontosaurus
  †Brontosaurus parvus
  †Bryceomys
  †Bryceomys fumosus – type locality for species
  †Bryceomys hadrosus
  †Bryceomys intermedius – type locality for species
  †Calycoceras
  †Camarasaurus – type locality for genus
  †Camarasaurus lentus – type locality for species
  Campeloma
  †Camptosaurus
  †Camptosaurus dispar
  †Carmelopodus – type locality for genus
  †Cassiope
  †Cedaromys
  †Cedaromys bestia – type locality for species
  †Cedaromys parvus – type locality for species
  †Cedarosaurus – type locality for genus
  †Cedarosaurus weiskopfae – type locality for species
  †Cedarpelta – type locality for genus
  †Cedarpelta bilbeyhallorum – type locality for species
  †Cedrorestes – type locality for genus
  †Cedrorestes crichtoni – type locality for species
  †Ceratodus
   †Ceratosaurus
  †Ceratosaurus nasicornis
  Cerithiopsis
  †Chamops
  †Chinlea – type locality for genus
  †Chirotherium
  †Chirotherium rex – or unidentified comparable form
  Chlamys
  †Chondrites
  †Cimexomys
  †Cimexomys antiquus – or unidentified comparable form
  †Cimolodon
  †Cimolodon electus
  †Cimolodon nitidus – or unidentified comparable form
  †Cimolodon similis
   †Cimolomys
  †Cimolomys clarki
  †Cimolomys milliensis – type locality for species
  Cladophlebis
  †Cladophlebis constricta
  †Cladophlebis parva
  †Claraia
  †Coelophysis – tentative report
  †Coelurus
  †Coelurus fragilis
  †Compsemys
  †Coniophis
   Corbula
  †Cretorectolobus
  †Ctenacodon
  †Cteniogenys
  Cucullaea
  †Cycadeoidea
  Cylichna
  †Dakotamys
  †Dakotamys malcolmi – type locality for species
  †Dakotasuchus
  †Dakotasuchus kingi
  †Deinonychus
  †Denazinemys
  †Denazinemys nodosa
  Dentalium
   †Diabloceratops – type locality for genus
  †Diabloceratops eatoni – type locality for species
  †Dinehichnus – type locality for genus
  †Dinochelys – type locality for genus
  †Diplodocus
  †Diplodocus hallorum
  †Diplodocus longus
  Discinisca – report made of unidentified related form or using admittedly obsolete nomenclature
  †Docodon
  †Dolichorhynchops
  †Dolichorhynchops tropicensis – type locality for species
   †Doswellia
  †Dryolestes
  †Dryosaurus
  †Dryosaurus altus
  †Dystrophaeus – type locality for genus
  †Dystrophaeus viaemalae – type locality for species
  Elliptio
  †Enchodus
  †Enneabatrachus
  †Entradasuchus – type locality for genus
  †Entradasuchus spinosus – type locality for species
  †Eocephalites
  †Eodelphis
   †Eolambia – type locality for genus
  †Eolambia caroljonesa – type locality for species
  †Eopolycotylus – type locality for genus
  †Eopolycotylus rankini – type locality for species
  †Equisetum
  †Eryma
  †Eucalyptus
  †Eunaticina
  †Euomphaloceras
caption: Restoration of the Late Triassic reptile Doswellia
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