Class [Mammalia] Linnaeus, 1758 - mammals
Order Rodentia Bowdich, 1821 - rodents
Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
Genus Ratufa Gray, 1867 - Oriental giant squirrels
1 Ratufa affinis Raffles, 1821 - cream-coloured giant squirrel
2 Ratufa bicolor (Sparrmann, 1778) - black giant squirrel
3 Ratufa indica (Erxleben, 1777) - Indian giant squirrel
4 Ratufa macroura Pennant, 1769 - grizzled Indian squirrel