垣曲盆地中始新世貘类和犀类新材料

NEW MATERIALS OF TAPIROID AND RHINOCEROTOID REMAINS (MAMMALIA, PERISSODACTYLA) FROM THE MIDDLE EOCEM OF YUANQU BASIN, CENTRAL CHINA

记述了近年来在山西垣曲盆地中始新世河堤组任村段中发现的貘类和犀类化石计４科７属８种动物。它们不仅为原有类群增加了新材料，而且出现了该地区以前不曾有过的种类，因而丰富了垣曲盆地中始新世哺乳动物群内涵。

The paleontologists of IVPP about ten times from 1992 to 1999 and together with colleagues from the Carnegie Museum of Natural History in Pittsburgh from 1994 to 1997 had made successful investigation in Yuanqu Basin, Central China, resulting in finding a great deal of fine fossils, including Primates, Rodentia and Insectivora. The specimens of Perissodactyla are not well preserved and most of them are isolated teeth. But these fossils not only increase new material of certain old groups (Deperetella depereti, Prohyracodon meridionale, Caenolophus promissus, Sianodon mienchiensis and Sianodon sinensis) but also add some taxa that have been found for the first time in the Basin (Rhodopagus yunnanensis, Breviodon sp. and Teleolophus cf. T. xiangshanensis). These fossils were found in two localities: Hedi, Yuanqu County, Shanxi Province and Rencun, Mienchi County, Henan Province. The fossil-bearing beds belong to Rencun Member, Hedi Formation of the Middle Eocene.