Parent taxon: Rodentia according to Teilhard de Jardin and Young 1931
Sister taxa: Allomyidae, Anomalomyidae, Anomaluroidea, Aplodontoidea, Archetypomyidae, Bandaomys, Castoroidea, Cavina, Cricetopidae, Ctenohystrica, Downsimys, Ectropomys, Eryomyina, Geomyoidea, Gliridae, Luribayomys, Megacricetodontidae, Muriformia, Myodonta, Pairomys, Petauristidae, Quercymys, Sciuroidea, Yuomyidae, Zamoramys, Ischyromyidae, Spalacoidea, Paciculus, Gliroidea, Ctenodactyloidea, Pedetoidea, Theridomyoidea, Castorimorpha, Anomaluromorpha, Ctenodactylomorpha, Glirimorpha, Alagomyidae, Laredomyidae, Pseudoparamys, Apletotomeus, Epeiromys, Floresomys, Griphomys, Heliscomys, Jimomys, Marfilomys, Meliakrouniomys, Pipestoneomys, Prolapsus, Texomys, Paramyidae, Ischyromyoidea, Sciuravidae, Cylindrodontidae, Protoptychidae
Subtaxa: Prosiphneus
Ecology: ground dwelling herbivore