Abstract: Abundant fossils such as sporopollen,corals and ammonites were collected from the formerly Upper Triassic Keleqinghe Group in the Dahongliutan region,western Kunlun in 2003 to 2005.These fossils are mostly traced back to the Permian,and thus the Group is redivided into the Permian Huangyangling Group.The discovery of theses fossils may provide direct evidence and new information for the regional stratigraphic classification and the examination of the geological and tectonic evolution of the Tianshuihai microcontinent and the Bayan Har Late Palaeozoic-Mesozoic marginal rift basin.