新疆迟滞鳄类新材料
收稿日期: 2020-01-10
网络出版日期: 2020-10-19
基金资助
中国科学院战略性先导科技专项(B类)(XDB26000000);国家自然科学基金(41572019);国家自然科学基金(41661134047);美国国家自然科学基金(NSF EAR 1714749)
New chroniosuchian materials from Xinjiang, China
Received date: 2020-01-10
Online published: 2020-10-19
刘俊 . 新疆迟滞鳄类新材料[J]. 古脊椎动物学报, 2020 , 58(4) : 283 -292 . DOI: 10.19615/j.cnki.1000-3118.200415
Chroniosuchians have the earliest representatives in Gansu, China, but the Chinese records were scarcer compared to Russia, especially the Triassic one. In Xinjiang, there was only one specimen reported from the upper part of the Guodikeng Formation. Here three new chroniosuchian specimens are reported from three new stratigraphic horizons: the Quanzijie Formation (middle Permian), the base of the Guodikeng Formation (upper Permian), and the Jiucaiyuan Formation (Lower Triassic). The osteoderm from the Jiucaiyuan Formation represents the first definite Triassic chroniosuchian from China. The new findings increase the chroniosuchian diversity and their time range in China. The bystrowianid chroniosuchian specimens from the Guodikeng and Jiucaiyuan formations demonstrated that this group survived in the end-Permian mass extinction in Xinjiang, China.
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