Abstract: Representing the youngest in the sequence of Neogene mammalian faunas in central Nei Mongol, the Gaotege fauna contains some derived taxa hitherto not known in the area. A total of 227 specimens of cricetids collected from three different levels of the Gaotege section are described and referred to 2 genera and 3 species, i.e. Sinocricetus major sp. nov., S. progressus Qiu & Storch, 2000 andNannocricetus mongolicus Schaub, 1934. S. major sp. nov. is characterized by its large size, high crown with well-developed (pseudo)mesolophids on lower molars, and by having an anterolingually directed pseudomesolophid often connected to the posterior wall of the m2 metaconid. According to paleomagnetic correlation, S. progressus and N. mongolicus occur in the interval 4.2~3.9 Ma in the Gaotege section, whereas S. major sp. nov. occurs around 4.2 Ma. Thus far, Sinocricetus and Nannocricetus have been mainly found in the lower Upper Miocene to Upper Pliocene strata of northern China; they may therefore represent two endemic Neogene cricetini genera in China. In dental morphology, Sinocricetus exhibits the evolutionary trends of increasing frequencies of protoloph I development and connecting between mesoloph and anterior wall of metacone on M1−2, labially seated anterolophulid on m1, and connecting between pseudomesolophid and posterior wall of metaconid on m2. In Nannocricetus, several inconspicuous dental morphological changes were observed, which include the increasing of root number from 3 to 4 on M1−2, reducing of the metaloph II on M1−2 and the lingual anteroloph(id) on M2−3 and m2−3, narrowing and splitting of the anteroconid on m1, and increasing frequency of mesolophid on m3.