List of the Mesozoic life of Utah Gurlin Tsav skull List of prehistoric mammals Alphadon Albertatherium Pucadelphys Metatheria Sparassodonta Didelphodon Stagodontidae Asiatherium Pappotherium Sinodelphys Atokatheridium Chulpasia Andinodelphys Australohyaena Deltatheroides Peratherium Fredszalaya Siamoperadectes Deltatheridium Antarctodolops Herpetotherium Polydolopimorphia Arcantiodelphys Unnuakomys Marsupial Arminiheringia Scalaridelphys Prothylacinus Argyrolagus Proborhyaenidae Deltatheroida Mimoperadectes Alphadontidae Paraborhyaena Proborhyaena Anatoliadelphys Hondalagus Mayulestes Herpetotheriidae Tsagandelt…

ta Patagosmilus Maastrichtidelphys Callistoe Holoclemensia Gurbanodelta Eodelphis Lotheridium Oklatheridium Nanocuris Pharsophorus Peradectes Borhyaena Peradectidae Protalphadon Thylacosmilidae Bonapartherium Cladosictis Borhyaenidae Hondonadia Deltatheridiidae Epidolops Sulestes Amphiperatherium Thylacosmilus