†subfamily Palaeocastorinae (beaver)

Mammalia - Rodentia - Castoridae

Parent taxon: Castoridae according to N. Rybczynski 2007

See also Korth 2014

Sister taxa: Agnotocastor, Agnotocastorinae, Anchitheriomys, Asiacastor, Boreofiber, Capatanka, Castorinae, Castoroidinae, Chalicomys, Euroxenomys, Migmacastor, Neatocastor, Oligotheriomys, Palaeomys, Romanocastor, Trigontherium, Trogontheriinae, Trogontherium, Youngofiber, Zamolxifiber

Subtaxa: Capacikala Euhapsis Fossorcastor Palaeocastor Pseudopalaeocastor

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Ecology: amphibious browser

Distribution:

• Miocene of United States (1: Texas collection)

• Harrisonian of United States (12: Nebraska, South Dakota, Wyoming)

• Arikareean of United States (25: Montana, Nebraska, Nevada, Oregon, South Dakota, Wyoming)

• Oligocene of Kazakhstan (5), United States (61: Nebraska, South Dakota)

Total: 104 collections including 118 occurrences

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