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 Pteromyinae Brandt, 1855 - flying squirrels
           01 Genus Aeretes Allen, 1940 - groove-toothed flying squirrel
           02 Genus Aeromys Robinson & Kloss, 1915 - large black flying squirrels
           03 Genus Belomys Thomas, 1908 - hairy-footed flying squirrel
           04 Genus Biswamoyopterus Saha, 1981 - Namdapha flying squirrel
           05 Genus Eupetaurus Thomas, 1888 - woolly flying squirrel
           06 Genus Glaucomys Thomas, 1908 - American flying squirrels
           07 Genus Hylopetes Thomas, 1908 - pygmy flying squirrels
           08 Genus Iomys Thomas, 1908 - Horsfield's flying squirrel
           09 Genus Petaurillus Thomas, 1908 - pygmy flying squirrels
           10 Genus Petaurista Link, 1795 - giant flying squirrels
           11 Genus Petinomys Thomas, 1908 - dwarf flying squirrels
           12 Genus Pteromys Cuvier, 1800 - Old World flying squirrels
           13 Genus Pteromyscus Thomas, 1908 - smoky flying squirrel
           14 Genus Trogopterus Heude, 1898 - complex-toothed flying squirrel