page_title: List of the Mesozoic life of Utah
section_title: T
hierarchical_section_title: List of the Mesozoic life of Utah / T
caption_attribution_description: Trinacromerum on display at the Royal Ontario Museum, Toronto.
context_page_description: This list of the Mesozoic life of Utah contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Utah and are between 252.17 and 66 million years of age.
context_section_description: †Talos – type locality for genus
  †Talos sampsoni – type locality for species
  †Tancredia – tentative report
  †Tanycolagreus
  †Tanycolagreus topwilsoni
  †Teinostomopsis – tentative report
  †Tempskya
  †Tempskya jonesii – type locality for species
  †Tempskya knowltoni
  †Tempskya minor
  †Tempskya superba
  †Tempskya whiteheadi – type locality for species
  †Tenontosaurus
   †Teratophoneus – type locality for genus
  †Teratophoneus curriei – type locality for species
  Teredolites
  †Teredolites clavatus
  †Tethyaster
  †Tethyaster jurassicus – type locality for species
  †Tetrasauropus
  †Thalassinoides
  †Therangopodus – tentative report
  †Therangospodus – type locality for genus
  †Therangospodus pandemicus – type locality for species
  †Theretairus
  †Thescelus
  †Thescelus insiliens
  Thracia
  †Thracia weedi
  †Tirolites
  †Tirolites carniolicus – tentative report
  †Tirolites smithi – or unidentified related form
   †Torvosaurus
  †Toxolophosaurus – or unidentified comparable form
  †Trachodon
  †Torosaurus
  †Torosaurus utahensis
  †Triconolestes – type locality for genus
  †Triconolestes curvicuspis – type locality for species
  †Trigonia
  †Trigonia americana
  †Trigonia elegantissima
  †Trigonia montanaensis
  †Trigonodus
  †Trigonodus orientalis – or unidentified comparable form
  †Trigonodus sandbergeri – or unidentified comparable form
  †Trigonodus sandbergi – or unidentified comparable form
   †Trinacromerum
  †Trinacromerum bentonianum – tentative report
  †Tripennaculus – type locality for genus
  †Tripennaculus eatoni – type locality for species
  †Trisauropodiscus
  †Trisauropodiscus moabensis – type locality for species
  Trochocyathus
  †Trochosmilia
  †Trochosmilia moorei – type locality for species
  †Tulotomops
  †Tulotomops laevibasalis
  †Turgidodon – type locality for genus
  †Turgidodon lillegraveni – type locality for species
  †Turgidodon madseni – type locality for species
  †Turgidodon russelli – or unidentified comparable form
  Turritella
  †Turritella whitei
  †Tylostoma – tentative report
   †Tyrannosauripus – type locality for genus
  †Tyrannosauripus petersoni – type locality for species
caption: Fossilized skeleton of the Late Cretaceous polycotylid plesiosaur Trinacromerum
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