Turtle remains from the Middle Jurassic Xintiangou Formation of Yunyang, Sichuan Basin, China,Annales de Paléontologie

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Turtle remains from the Middle Jurassic Xintiangou Formation of Yunyang, Sichuan Basin, China
Annales de Paléontologie ( IF 1 ) Pub Date : 2020-08-14 , DOI: 10.1016/j.annpal.2020.102440
Xufeng Hu , Lu Li , Hui Dai , Ping Wang , Eric Buffetaut , Guangbiao Wei , Can Xiong , Haiyan Tong

Three turtle shells from the Middle Jurassic Xintiangou Formation of Yunyang (Chongqing, China) are described and assigned to Xinjiangchelyidae (Testudines: Eucryptodira). This is the first report of turtle remains from the Xintiangou Formation, Sichuan Basin and represents the oldest known Xinjiangchelyidae. The assemblage includes two taxa, Protoxinjiangchelys sp. and Xinjiangchelyidae indet. This discovery extends the stratigraphical distribution of Xinjiangchelyidae and improves our knowledge about the early evolution of that family. It demonstrates that by the Middle Jurassic, at the time of deposition of the Xintiangou Formation, the group was already diversified in the Sichuan Basin.

更新日期：2020-08-14

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