The Global Stratotype Section and Point for the base of the Middle Ordovician Series and the Third Stage (Dapingian)
Xiaofeng Wang, Svend Stouge, Chen Xiaohong, Zhihong Li, Wang Chuanshang, Stan Finney, Zeng Qingluan, Zhou Zhi-qiang, Chen Huiming, Bernd‐D. Erdtmann
Abstract
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