Biostratigraphy of Triassic marine reptiles in Southwest Guizhou and its adjacent area

This paper briefly reviews the Triassic marine reptile fossils in Guizhou P rovince, especially the fossils that have been recently found in the Guanli ng area. Based on three sections at Guanling and Xingyi, Guizhou Province a nd Luoping, Yunnan Province, four horizons with vertebrate fossils are reco gnized in the Middle and Upper Triassic of this area; They are from bottom to top: Member I and Member II of the Guanling Formation, and the Zhuganpo Member and the Wayao Member of the Falang Formation.