Class [Mammalia] Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
       Subfamily Pteromyinae Brandt, 1855 - flying squirrels
         Genus Petinomys Thomas, 1908 - dwarf flying squirrels
           Petinomys bartelsi see Hylopetes bartelsi Chasen, 1939
           Petinomys crinitus Hollister, 1911
           Petinomys fuscocapillus Jerdon, 1847 - Travancore flying squirrel
           Petinomys genibarbis Horsfield, 1822 - whiskered flying squirrel
           Petinomys hageni Jentink, 1888
           Petinomys lugens Thomas, 1895
           Petinomys setosus Temminck, 1844 - white-bellied flying squirrel
           Petinomys vordermanni Jentink, 1890 - Vordermann's flying squirrel