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 Conothoa Lyon, 1904
             Ochotona roylei (Ogilby, 1839) - Royle's pika
               [Ochotona roylei roylei]ᵀ (Ogilby, 1839)