†family Caenotheriidae (even-toed ungulate)
Parent taxon: Artiodactyla according to E. D. Cope 1889
Sister taxa: Achaenodontidae, Achtiaria, Antiacodontidae, Antiacodontinae, Cetancodontamorpha, Choeropotamoidea, Delahomeryx, Dichobunoidea, Dulcidon, Eolantianus, Eschatiidae, Eurytheriidae, Helohyinae, Hexacodus, Hidrosotherium, Hsanotherium, Leptochoerinae, Lophiomerycidae, Neoselenodontia, Nonruminantia, Palaeodonta, Protolabididae, Raoellidae, Raphenacodus, Ruminantiamorpha, Simpsonodus, Suiformes, Suoidea, Tragulohyus, Tylopoda, Whippomorpha, Entelodontoidea, Ancodonta, Cetruminantia
Subtaxa: none
Ecology: ground dwelling grazer-browser