Synonym: Moropomorpha
Parent taxon: Perissodactyla according to L. T. Holbrook and J. Lapergola 2011
See also Bai et al. 2017, Carroll 1988, Colbert 2006, Eberle 2005, Holanda et al. 2011, Holbrook 1999, Holbrook et al. 2004, Hooker 1996, Hooker and Dashzeveg 2004, Maas et al. 2001, Prothero and Schoch 1989, Schoch 1984 and Thurmond and Jones 1981
Sister taxa: Anthracobunidae, Brontotheriidae, Cambaytheriidae, Cambaytherium, Chelodactyla, Desmostylia, Equina, Equoidea, Ghazijhippus, Hallensia, Hippopotamus iravaticus, Hyracotheriidae, Lophodontomorpha, Mesaxonia, Mesolambdolophus, Nakusia, Paschatherium, Perissobune, Rhinocerotida, Selenida, Skopaiolophus, Solidungula, Stereopterna, Teilhardimys, Titanotheriomorpha
Subtaxa: Ancylopoda Breviodontidae Cardiolophus Ceratomorpha Homogalax Isectolophidae Isectolophomorpha Isectolophus Kalakotia Lophialetidae Rhinotapiromorpha Rhodopagidae Systemodon
Ecology: ground dwelling browser