Mountain Beavers (Aplodontiidae) is a biological family of the class Mammalia (Mammals) and order Rodentia (Rodents).
Aplodontia
Castoridae
Capromyidae
Gliridae
Ctenodactylidae
Dipodidae
Muridae
Aplodontiidae
Erethizontidae
Myocastoridae
Geomyidae
Heteromyidae
Anomaluridae
Pedetidae
Sciuridae