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 Nannosciurus Trouessart, 1880 - black-eared squirrel 1 Nannosciurus melanotis (S. Müller, 1844) - black-eared pygmy squirrel