Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Lagomorpha Brandt, 1855 - lagomorphs Family Ochotonidae Thomas, 1897 - pikas Genus Ochotona Link, 1795 - pikas Subgenus Ochotona Link, 1795 Ochotona nubrica Thomas, 1922 1 [Ochotona nubrica nubrica]ᵀ Thomas, 1922 2 Ochotona nubrica lhasaensis Feng & Kao, 1974