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Fossil Range: Late Eocene - Recent †Eocastoroides
†Steneofiber
†Neatocastor
†Asiacastor
†Youngofiber
†Trogontherium
†Eucastor
†Schreuderia
†Dipoides
†Boreofiber
†Romanocastor
†Zamolxifiber
†Procastoroides
†Castoroides
†Paradipoides
†Agnotocastor
†Capacikala
†Pseudopalaeocastor
†Fossorcastor
†Euhapsis
†Propalaeocastor
†Palaeomys
†Palaeocastor
†Hystricops
Castor A personal Castoridae contains them residing coinage of beaver and their fossil relatives. This was when the extremely diverse class action of rodents, but is currently restricted to one genus, Castor.

Taxonomy
A as a consequence taxonomy is according to McKenna & Bell (1997).

Personal Castoridae †Eocastoroides incertae sedis Subfamily †Castoroidinae †Steneofiber †Neatocastor †Asiacastor †Youngofiber †Trogontherium †Eucastor †Schreuderia †Dipoides †Boreofiber †Romanocastor †Zamolxifiber †Procastoroides †Castoroides - extinct giant beavers †Paradipoides Subfamily Castorinae †Agnotocastor incertae sedis Tribe †Capacikalini †Capacikala †Pseudopalaeocastor Tribe Castorini Subtribe †Euhapsina †Fossorcastor †Euhapsis Subtribe Castorina †Propalaeocastor †Palaeomys †Palaeocastor †Hystricops Castor - modern beavers

Bob Arnebeck's Beavers
Descriptions of beavers and beaver ponds; short reviews of books and articles about beavers.

Beaver Information
Fact sheet about the largest rodent found in the U.S. and Canada.

Castoridae Family
Information about the family and detailed accounts of its two species from the Animal Diversity Web.

Kids and Teens: School Time: Science: Living Things: Animals: Mammals: Beavers