Class [Mammalia] Linnaeus, 1758 - mammals Count: [*] 21o;132f;1061g;4316s; ‡1f;5g;38s Order Rodentia Bowdich, 1821 - rodents Count: [*] 29f;399g;1788s; ‡1g;16s Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs Count: [*] 49g;259s Subfamily Pteromyinae Brandt, 1855 - flying squirrels Count: [*] 14g;44s Genus Petinomys Thomas, 1908 - dwarf flying squirrels Count: [*] 8s Petinomys bartelsi see Hylopetes bartelsi Chasen, 1939 Count: -