Mammalia - Rodentia - Eutypomyidae

Full reference: W. D. Matthew. 1905. Bulletin of the American Museum of Natural History 21(3)

Belongs to Eutypomys according to W. D. Matthew 1905

Sister taxa: Eutypomys acares, Eutypomys hibernodus, Eutypomys inexpectatus, Eutypomys montanensis, Eutypomys obliquidens, Eutypomys parvus

Type specimen: Its type locality is Quinn Draw (Lower Nodular Zone), which is in an Orellan terrestrial horizon in the Brule Formation of South Dakota

Ecology: ground dwelling herbivore

Average measurements (in mm): m1 3.15 x 3.40