Neimengomys, MENG & NI & LI & BEARD & GEBO & WANG & WANG, 2007

MENG, JIN, NI, XIJUN, LI, CHUANKUI, BEARD, K. CHRISTOPHER, GEBO, DANIEL L., WANG, YUANQING & WANG, HONGJIANG, 2007, New Material Of Alagomyidae (Mammalia, Glires) From The Late Paleocene Subeng Locality, Inner Mongolia, American Museum Novitates 3597 (1), pp. 1-32 : 15

Neimengomys , new genus

TYPE SPECIES: Neimengomys qii , new species

ETYMOLOGY: Nei-Meng is Chinese (in pinyin) for ‘‘Inner Mongolia’’; mys is Greek for ‘‘mouse’’, in analogy with Alagomys and Tribosphenomys .

DIAGNOSIS: Differs from Alagomys but resembles Tribosphenomys in having a buccal shelf and a hypocone on upper molars, a more transverse M3 with conical cusps, and a narrower talonid basin. Differs from Tribosphenomys in having a P4 with a weak buccal shelf, a more inflated protocone on upper molars, a more inflated and buccally positioned hypocone, and a smaller hypoconulid on lower molars.