animal order - the order of animals

Eutheria, subclass Eutheria - all mammals except monotremes and marsupials

Duplicidentata - in former classifications considered a suborder of Rodentia coextensive with the order Lagomorpha: gnawing animals

gnawing mammal, lagomorph - relative large gnawing animals; distinguished from rodents by having two pairs of upper incisors specialized for gnawing

family Leporidae, Leporidae - hares and rabbits

family Ochotonidae, Ochotonidae - pikas and extinct forms