Mammalia - Rodentia

Full reference: J. A. Lillegraven. 1977. Bulletin of the American Museum of Natural History 158(4)

Belongs to Griphomys according to J. A. Lillegraven 1977

Sister taxon: Griphomys alecer

Type specimen: Its type locality is Camp San Onofre, which is in an Uintan/Duchesnean terrestrial horizon in the Santiago Formation of California

Ecology: ground dwelling herbivore