†subfamily Anchitheriomyinae Korth 2001 (beaver)
Mammalia - Rodentia - Castoridae
Parent taxon: Castoridae according to W. W. Korth 2001
Sister taxa: Agnotocastor, Agnotocastorinae, Anchitheriomys, Asiacastor, Boreofiber, Capatanka, Castorinae, Castoroidinae, Chalicomys, Euroxenomys, Migmacastor, Neatocastor, Oligotheriomys, Palaeocastorinae, Palaeomys, Romanocastor, Trigontherium, Trogontheriinae, Trogontherium, Youngofiber, Zamolxifiber
Subtaxa: Microtheriomys
Ecology: amphibious browser
Distribution:
• Miocene of United States (2: Nebraska collections)
• Arikareean of United States (4: Mississippi, Montana, Oregon)
Total: 6 collections each including a single occurrence