Mammalia - Rodentia - Cricetidae
Alternative spelling: Cosomys
Full reference: R. W. Wilson. 1932. Cosomys, a new genus of vole from the Pliocene of California. Journal of Mammalogy 13(2):150-154
Parent taxon: Mimomys according to C. A. Repenning 2003
See also Chaline et al. 1999, Hesse 1934, Hibbard and Zakrzewski 1967, Korth 1994, Kurten and Anderson 1980, Martin 1979, Martin et al. 2002, Mou 1997, Schultz 1937, Wilson 1933 and Zakrzewski 1969
Sister taxa: Mimomys (Cromeromys), Mimomys (Ogmodontomys), Mimomys (Ophiomys), Mimomys davakosi, Mimomys meadensis, Mimomys occitanus, Mimomys panacaensis, Mimomys pliocaenicus, Mimomys sawrockensis, Mimomys taylori, Mimomys virginianus
Subtaxa: Mimomys (Cosomys) primus
Ecology: ground dwelling herbivore
Distribution:
• Blancan of United States (13: California, Idaho collections)
• Pliocene of United States (9: Idaho)
Total: 22 collections each including a single occurrence