Parent taxon: Caviomorpha according to N. S. Upham and B. D. Patterson 2015
See also Arnal et al. 2014, Arnal and Vucetich 2015, Carroll 1988, Coster et al. 2010, Huchon and Douzery 2001, Lavocat 1976, Nowak 1999, Patterson and Wood 1982, Shockey et al. 2009, Sostillo et al. 2014, Vucetich et al. 2015, Vucetich et al. 2014, Vucetich and Verzi 1996, Vucetich et al. 2010, Wood 1958 and Wood and Patterson 1959
Sister taxa: Aenigmys, Balsayacuy, Cachiyacuy, Canaanimys, Cavioidea, Cephalomyidae, Chachapoyamys, Chambiramys, Chinchillidae, Chinchilloidea, Erethizontoidea, Luribayomys, Luribayomys masticator, Palmiramys, Palmiramys waltheri, Pozomys, Tacheria, Tarapotomys, Vucetichimys, Zetamyidae
Subtaxa: Abrocomidae Acarechimys Acaremyidae Adelphomys Capromyidae Caviocricetus Changquin Chasichimys Ctenomyidae Deseadomys Draconomys Dudumus Echimyidae Eodelphomys Eoespina Eosachacui Eosallamys Ethelomys Kannabateomys Lapazomys Leucokephalos Llitun Loretomys Marisela Mayomys Migraveramus Myocastoridae Neophanomys Octodontidae Paulacoutomys Plesiacarechimys Proechimys Prospaniomys Protacaremys Protadelphomys Sallamys Selvamys Spaniomys Stichomys Vallehermosomys Xylechimys
Ecology: ground dwelling herbivore