Distylomys Wang, 1988

Bi, Shundong, Meng, Jin, Wu, Wenyu, Ye, Jie & Ni, Xijun, 2009, New Distylomyid Rodents (Mammalia: Rodentia) from the Early Miocene Suosuoquan Formation of Northern Xinjiang, China, American Museum Novitates 3663, pp. 1-20 : 4

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.