Tritemnodon List of the prehistoric life of Colorado Wasatch Formation List of the prehistoric life of Wyoming List of the Cenozoic life of Wyoming List of the Cenozoic life of Colorado Eocene Pyrocyon Hyaenodonta Creodonta Didymictinae Lahimia Hyaenodontinae Pristinictis Eosictis Chailicyon Sectisodon Ekweeconfractus Cynohyaenodon Lycophocyon Indohyaenodontidae Oxyaeninae Dormaalocyon Prodaphaenus Palaeonictinae Intyrictis Oodectes Machaeroidinae Indohyaenodon Raphictis Apterodontinae Viverravinae Machaeroides Bryanictis Gracilocyon Simbakubwa Ictidopappus Hyaenodontoidea Paroodectes Hyainailouroidea Vassacyon Orienspterodon Diegoaelurus Palaearctonyx Hyaenodontidae Dawsonicyon Hyainailouridae Carnivoramorpha Oxyaenidae Limnocyoninae …

Kerberos langebadreae Tytthaena Dissopsalini Altacreodus Metasinopa Messelogale Sarkastodon Xinyuictis Sinopidae Hemipsalodon Dissopsalis Sivapterodon Tapocyon Procynodictis Lesmesodon Palaeonictis Limnocyon Prolimnocyon Exiguodon Megistotherium Falcatodon Proviverrinae Teratodontidae Paramiacis Miocyon Hyainailourinae Patriofelis Uintacyon Oxyaena Isohyaenodon Metapterodon Galecyon Proviverra Apterodon Didymictis Eurotherium Hyainailouros Quercygale Sinopa Protictis Ferae Vulpavus Viverravus Pterodon (mammal) Hyaenodon Viverravidae Washakie Formation Miacis Bridger Formation Willwood Forma

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