地质通报2017，Vol.36Issue(6)：913-917,5.
海龙类化石在云南泸西上三叠统的发现
The discovery of Thalattosauria (Reptilia:Diapsida) from the Late Triassic strata of Luxi County, Yunnan Province
摘要
Abstract
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.关键词
海龙目/晚三叠世/小凹组/云南沪西Key words
Thalattosauria/Late Triassic/Xiaowa Formation/Luxi County, Yunnan分类
生物科学引用本文复制引用
冉昌,胡世学,黄金元,张启跃,周长勇..海龙类化石在云南泸西上三叠统的发现[J].地质通报,2017,36(6):913-917,5.基金项目
中国地质调查局项目《南盘江成矿区贞丰和富宁地区地质矿产调查》(编号:DD20160020)、《罗平生物区区域地质专项地质调查》(编号:12120114068001)和国家自然科学基金项目《应用同步加速器X射线层析显微技术重建云南罗平中三叠世牙形石多分子器官》(批准号:41502013) （编号:DD20160020）
