The discovery of Thalattosauria (Reptilia:Diapsida) from the Late Triassic strata of Luxi County, Yunnan Province
This paper reposts a thalattosaur specimen collected from the Late Triassic Xiaowa Formation in Xiaoxingan Village,Luxi County,Yunnan Province.It is the first record of Thalattosauria fossil outside Guanling,Guizhou Province.The specimen consists of 9 well preserved dorsal vertebrae,21 dorsal ribs,and several gastralia.4 dorsal vertebrae are present and arranged as a sequence of natural order.The length of dorsal vertebrae is about 12cm.The transverse process is well developed.The two ends of the dorsal vertebrae are slightly biconcave,distinctly different from ichthyosauria vertebrae with obvious biconcave.The specimen is tentatively assigned to the Thalattosauria.The new discovery provides new information for paleobiographic distribution of the Thalattosauria and the search for new fossil localities of the Guangling biota.
ThalattosauriaLate TriassicXiaowa FormationLuxi County, Yunnan
国家科技期刊平台
NSTL
万方数据
维普
