Cloudina aggregates from the uppermost Dengying Formation, Three Gorges area, South China, and stratigraphical implications

Lei Zhang,Shan Chang,Can Chen,Xia Wang,Qinglai Feng,Michael Steiner,Ben Yang,Roger Mason,Zhenbing She,Jiaxin Yan,Jean Vannier,Marie-Béatrice Forel,Qian Xiao,Sébastien Clausen

Precambrian Research（2022）

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摘要

•Accumulations of Cloudina are described from the topmost Dengying Formation in the Three Gorges.•An updated SIMS 206Pb/238U age of 540.6 ± 3.4 Ma is obtained from the upper Dengying Fm.•Bio-, chemo- and chronostratigraphical evidences suggest that the E-CB should be placed in the Yanjiahe Fm.

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关键词

Cloudina,Ediacaran Biota,Cambrian,Zircon age dating,Biostratigraphy

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