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 cansus Lyon, 1907
               1 [Ochotona cansus cansus]ᵀ Lyon, 1907
               2 Ochotona cansus morosa Thomas, 1912
               3 Ochotona cansus sorella Thomas, 1908
               4 Ochotona cansus stevensi Osgood, 1932