Mammalia - Rodentia - Castoridae
Full reference: W. W. Korth and R. J. Emry. 1997. The skull of Anchitheriomys and a new subfamily of beavers (Castoridae, Rodentia). Journal of Paleontology 71(2):343-347
Parent taxon: Castoridae according to W. W. Korth 2001
See also Korth 2014 and Korth and Emry 1997
Sister taxa: Agnotocastor, Anchitheriomyinae, Anchitheriomys, Asiacastor, Boreofiber, Capatanka, Castorinae, Castoroidinae, Chalicomys, Eocastoroides, Euroxenomys, Migmacastor, Montanacastor, Palaeocastorinae, Palaeomys, Romanocastor, Trigontherium, Trogontheriinae, Trogontherium, Youngofiber, Zamolxifiber
Subtaxa: Neatocastor Oligotheriomys
Type: Agnotocastor
Ecology: amphibious browser
Distribution:
• Miocene of United States (2: Montana, Texas collections)
• Harrisonian of United States (1: Montana)
• Arikareean of United States (1: Florida)
• Oligocene of Canada (1: Saskatchewan), United States (5: Florida, North Dakota, South Dakota)
Total: 10 collections each including a single occurrence