Class Mammalia Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Suborder Sciurognathi (Tullberg, 1899) see Suborder Sciuromorpha Brandt, 1855
       Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
         Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
           Genus Sciurotamias Miller, 1901 - rock squirrels
             1 Sciurotamias davidianus (Milne-Edwards, 1867) - Père David's rock squirrel
             2 Sciurotamias forresti Thomas, 1922 - Forrest's rock squirrel
             3 Subgenus Sciurotamias Miller, 1901
             4 Subgenus Rupestes