Mammalia - Rodentia - Cricetidae

Alternative combinations: Mimomys parvus, Pliomys parvus, Pliophenacomys parvus

Full reference: R. W. Wilson. 1933. A rodent fauna from later Cenozoic beds of southwestern Idaho. Carnegie Institution of Washington Publication 440(8):117-135

Belongs to Ophiomys according to R. A. Martin et al. 2002

Sister taxa: Mimomys dakotaensis, Mimomys davakosi, Mimomys occitanus, Mimomys panacaensis, Mimomys pliocaenicus, Mimomys virginianus, Cosomys primus, Ophiomys mcknighti, Ophiomys taylori, Ophiomys fricki, Ophiomys magilli, Cseria parkeri

Type specimen: Its type locality is Jackass Butte (UO 2404), which is in a Blancan terrestrial horizon in Idaho

Ecology: ground dwelling herbivore

Average measurements (in mm): M1 2.10 x 1.30, M2 1.80 x 1.10, M3 1.70 x 0.90, m1 2.61 x 0.94, m2 1.60 x 1.10

Estimated body mass: 99.1 g based on m1 length