Abstract: The chalicotheres are a comparatively small group of the perissodactyles. While the functional morphology of the peculiar limb bones of the chalicotheres remains always highly attracting for the paleontologists, little attention has been paid to their stratigraphic significance. Working with the material to be described below, the authors found that the chalicotheres are among the most often encountered fossils in the Mid—Tertiary deposits in China. In addition, they evolved rapidly. This makes them important in stratigraphic analysis. For the purpose of comparison the chalicothere materials gathered from the northwest provinces of China (Nei Mongol, Ningxia and Xinjiang), both previously reported and unstudied, are carefully examined. A revision of these specimens will be given elsewhere.