A New Thalattosaur, Concavispina Biseridens Gen. Et Sp. Nov. from Guanling, Guizhou, China
详细信息
- 责任者：Zhao Lijun (Zhejiang Museum of Natural History ; Hangzhou 310012 ; China) ; Liu Jun
- 刊名：Vertebrata Palasiatica
- 出版年：2013
- 卷期：51(1)
- 关键词：爬行纲 ; Reptilia ; 贵州 ; Guizhou Province
- 页码：p.24-28
- 图表：illus., 18 refs.
- 分类号：1101
- issnNo：ISSN1000-3118
- isbnNo：CN11-1905/Q
摘要
A new thalattosaur, Concavispina biseridens gen. et sp. nov., is established on the basis of a new skeleton from Xiaowa Formation of Guangling, Guizhou, China. It is diagnosed by two rows of blunt teeth on anterior part of maxilla and V-shaped notch on the dorsal margin of neural spines in dorsal vertebrae. It shares three derived characters only with Xinpusaurus: anterior end of maxilla curved dorsally; cervical vertebrae less than five; proximal end of humerus wider than distal end. This indicates that the new taxon may have a closely relationship with Xinpusaurus.