. . . . . "Anchitheriomys is an extinct member of the beaver family, Castoridae. Until recently, it was placed in a closely related family of rodents, Eutypomyidae, but a partial skull shows similarities to another early beaver, Agnotocastor."@en . "Anchitheriomys"@en . . . . "* Amblycastor (Matthew, 1918)" . . .