page_title: List of the Mesozoic life of Wyoming
section_title: T
hierarchical_section_title: List of the Mesozoic life of Wyoming / T
caption_attribution_description: Thescelosaurus neglectus. Reprinted from original, previously-unpublished artwork by Leandra Walters under a CC BY license, with permission from Leandra Walters, original copyright 2015.
context_page_description: This list of the Mesozoic life of Wyoming contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Wyoming and are between 252.17 and 66 million years of age.
context_section_description: †Tancredia
  †Tancredia transversa
   †Tanycolagreus – type locality for genus
  †Tanycolagreus topwilsoni – type locality for species
  Tapeinidium
  Tapeinidium undulatum – tentative report
  †Tarrantoceras
  †Tarrantoceras exile – type locality for species
  †Tarrantoceras flexicostatum – type locality for species
  †Tarrantoceras sellardsi
  †Tatenectes
  †Tatenectes laramiensis – type locality for species
  †Tathiodon – type locality for genus
  †Tathiodon agilis – type locality for species
  †Telacodon
  †Telacodon laevis – type locality for species
  †Tenea
  †Tenea circularis
   †Tenontosaurus
  †Tenontosaurus tilletti
  Teredo
  †Thalassinoides
  †Theatonius – type locality for genus
  †Theatonius lancensis – type locality for species
  †Theretairus – type locality for genus
  †Theretairus antiquus – type locality for species
   †Thescelosaurus – type locality for genus
  †Thescelosaurus neglectus – type locality for species
  †Thescelus
  †Thescelus insiliens – type locality for species
  †Thoracosaurus – or unidentified comparable form
  Thracia
  †Thracia weedi
  Thyasira
   †Thyrsopteris
  †Thyrsopteris brevifolia
  †Thyrsopteris brevipennis
  †Thyrsopteris crassinervis
  †Thyrsopteris dentifolia – type locality for species
  †Thyrsopteris elliptica
  †Thyrsopteris pecopteroides
  †Thyrsopteris pinnatifida
  †Tinodon – type locality for genus
  †Tinodon bellus – type locality for species
  †Torosaurus – type locality for genus
  †Torosaurus latus – type locality for species
  †Torotix – type locality for genus
  †Torotix clemensi – type locality for species
   †Torvosaurus – type locality for genus
  †Torvosaurus tanneri – type locality for species
  †Trachodon
  †Trachyscaphites
  †Trachyscaphites redbirdensis
  †Trachytriton
  †Trachytriton vinculum
  †Tragodesmoceras
  †Tragodesmoceras carlilense
  †Trapa
  †Trapa microphylla
   †Triceratops – type locality for genus
  †Triceratops horridus – type locality for species
  †Triceratops ingens – type locality for species
  †Triceratops prorsus – type locality for species
  †Triceratops sulcatus – type locality for species
  †Trigonia
  †Trigonia americana
  †Trigonia elegantissima
  †Trigonia montanaensis
  †Trigonia quadrangularis
  †Trioracodon
  †Trioracodon bisulcus – type locality for species
   Trochocyathus – tentative report
  †Trochodendroides
  †Troodon
  †Troodon formosus
  †Turgidodon
  †Turgidodon rhaister – type locality for species
  †Turgidodon russelli
  Typha
  †Tyrannosaurus – type locality for genus
  †Tyrannosaurus rex – type locality for species
caption: Life restoration of the Late Cretaceous herbivorous dinosaur Thescelosaurus
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