Distylomys Wang, 1988

TYPE SPECIES: Distylomys tedfordi Wang, 1988 .

INCLUDED SPECIES: Distylomys qianlishanensis Wang, 1988; D. burqinensis, n. sp.

GEOLOGICAL RANGE: Late Oligocene to middle Miocene.

GEOGRAPHIC DISTRIBUTION: Inner Mongolia, Gansu, and Xinjiang, China .

EMENDED DIAGNOSIS: Incisive foramen small; tooth rows convergent anteriorly; mental foramen in diastema; distinct ventral masseteric crest extending below p4; sciurognathous angular process; dental formula 1/1, 0/0, 1/1, 3/3; cheek teeth hypselodont with asymmetrical pattern; P4 nonmolariform; upper molars bilophodont without the mure; p4 molariform; lower molars bilophodont with the mure; mesoflexid and hypoflexid deep and wide, opposite to each other and with cement; worn occlusal surface of cheek teeth smoothly concave with enamel thin or interrupted at the posterior edge of teeth.