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

IF 1 4区 地球科学 Q4 PALEONTOLOGY
Xufeng Hu , Lu Li , Hui Dai , Ping Wang , Eric Buffetaut , Guangbiao Wei , Can Xiong , Haiyan Tong
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引用次数: 6

Abstract

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.

四川盆地云阳中侏罗统新天沟组龟化石
本文描述了重庆云阳地区中侏罗统新天沟组的3个甲壳,并将其归属于新疆甲壳科(鳖亚纲:鳖亚纲)。这是四川盆地新天沟组首次发现的龟类化石,是目前已知最古老的新疆龟科。该组合包括两个分类群:Protoxinjiangchelys sp.和Xinjiangchelyidae indet。这一发现扩展了新疆切利亚科的地层分布,提高了我们对该科早期演化的认识。说明到中侏罗统新天沟组沉积时,四川盆地内的群已经多样化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Annales de Paleontologie
Annales de Paleontologie 地学-古生物学
CiteScore
1.70
自引率
10.00%
发文量
8
审稿时长
>12 weeks
期刊介绍: Créées par Marcellin Boule en 1905, les Annales de Paléontologie publient 4 numéros par an traitant des fossiles animaux et végétaux, dans tous les domaines de la paléontologie incluant : -La Paléoanatomie- La Paléohistologie- La Morphologie fonctionnelle- La Systématique- L''Évolution- La Paléoécologie ... et toute les contributions susceptibles d''améliorer la compréhension des organismes et des environnements éteints.
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