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
             1 Ochotona cansus Lyon, 1907
             2 Ochotona curzoniae (Hodgson, 1858) - black-lipped pika
             3 Ochotona dauurica (Pallas, 1776)
             4 Ochotona huangensis (Matschie, 1908)
             5 Ochotona nubrica Thomas, 1922
             6 Ochotona pusilla (Pallas, 1769) - steppe pika
             7 Ochotona rufescens (Gray, 1842) - Afghan pika
             8 Ochotona thibetana (Milne-Edwards, 1871) - Moupin pika
             9 Ochotona thomasi Argyropulo, 1948 - Thomas' pika