Mammalia - Artiodactyla - Merycoidodontidae
Synonyms: Megoreodon Schultz and Falkenbach 1954, Paracotylops Matthew 1901, Promerycochoerus Douglass 1901, Superdesmatochoerus Schultz and Falkenbach 1954
Parent taxon: Merycoidodontidae according to B. Lander 1998
Sister taxa: Aclistomycter, Bathygenys, Brachycrus, Desmatochoerus, Eporeodon, Hypsiops, Leptauchenia, Limnenetes, Mediochoerus, Merychyinae, Merycoides, Merycoidodon, Mesoreodon, Miniochoerus, Oreodontoides, Oreonetes, Paroreodon, Phenacocoelinae, Phenacocoelus, Sespia, Ticholeptus
Subtaxa: Merycochoerus carrikeri, Merycochoerus chelydra, Merycochoerus magnus, Merycochoerus matthewi, Merycochoerus pinensis, Merycochoerus proprius, Merycochoerus vantasselensis, Promerycochoerus superbus
Type: Merycochoerus proprius
Ecology: ground dwelling herbivore