Full reference: C. Fries, Jr. et al. 1955. Smithsonian Miscellaneous Collections 123(7)
Parent taxon: Protrogomorpha according to C. Fries et al. 1955
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, Siphneidae, Yuomyidae, Zamoramys, Ischyromyidae, Spalacoidea, Paciculus, Gliroidea, Ctenodactyloidea, Pedetoidea, Theridomyoidea, Castorimorpha, Anomaluromorpha, Ctenodactylomorpha, Glirimorpha, Alagomyidae, Laredomyidae, Pseudoparamys, Apletotomeus, Epeiromys, Griphomys, Heliscomys, Jimomys, Marfilomys, Meliakrouniomys, Pipestoneomys, Prolapsus, Texomys, Paramyidae, Ischyromyoidea, Sciuravidae, Cylindrodontidae, Protoptychidae
Subtaxa: Floresomys guanajuatoensis
Type: Floresomys guanajuatoensis
Ecology: ground dwelling herbivore