List of the Mesozoic life of Utah List of the Cenozoic life of Colorado Afairiguana Paleochelco Ptilotodon Hoyalacerta Stenoplacosaurus Dryadissector Chromatogenys Spathorhynchus Calanguban Pumilia Pyrenasaurus Bharatagama Paramacellodus Archaeovaranus Pelsochamops Chamops Dyticonastis Desertiguana Catactegenys Indiagama Barbatteius Gobekko Uquiasaurus Paramacellodidae Sineoamphisbaena Geiseltaliellus Myrmecodaptria Barbatteiidae Jucaraseps Pleurodontagama Dalinghosaurus Sciroseps Helodermoides Isodontosaurus Suzanniwana Lapitiguana Peltosaurus Anolbanolis Monstersauria Heterodontagama Palaeosaniwa Sharovisaurus Xihaina Atokasaurus Archaerhineura Priscagamidae Ototriton Cryptobicuspidon Odaxosaurus Asprosaurus Hyporhina …

Distortodon Oardasaurus Babibasiliscus Anchaurosaurus Phrynosomimus Anniealexandria Mimeosaurus Suratagama Norellius Carusia Paraplacosauriops Chometokadmon Becklesius Tetrapodophis Xianglong Pariguana Meyasaurus Priscagama Gueragama Socognathus Macrorhineura Arretosauridae Magnuviator Armandisaurus Chthonophis Polrussia Liushusaurus Pristiguana Bicuspidon Yabeinosaurus Huehuecuetzpalli Polyglyphanodontia Kuwajimalla Hoburogekko Gilmoreteius Cretaceogekko Polyg

lyphanodon Saichangurvel Igua Mosasauria Retinosaurus Gobiguania Glyptosaurinae Coniophis Barbaturex Squamata