Attributes / relations provided by
♦ ¹Thomomys bottae, Cheri A. Jones and Colleen N. Baxter, MAMMALIAN SPECIES No. 742, pp. 1–14 (2004)
♦ ²An Ecological Survey of Endemic MOUNTAIN BEAVERS (Aplodontia rufa) in California, 1979-83, Dale T. Steele', State of California, THE RESOURCES AGENCY, Department of Fish and Game