: Paleoclimatology: Dapingian

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Dapingian

The Dapingian is the third stage of the Ordovician period and the first stage of the Middle Ordovician series. It is preceded by the Floian and succeeded by the Darriwilian. The top of the Floian is defined as the first appearance of the conodont species Baltoniodus triangularis which happened about 470 million years ago. The Dapingian lasted for about 2.7 million years until about 467.3 million years ago. The Dapingian is named after Daping, a village that lies near the Dapingian GSSP at Huanghuachang. Daping is very close to an outcrop with similar rocks, the "Chenjiahe section" (formerly "Daping section") in Chenjiahe. The Global Boundary Stratotype Section and Point (GSSP) of the Dapingian is the Huanghuachang section, in Huanghuachang, Yichang, China. It is an outcrop of the Dawan Formation. The lower boundary is defined as the first appearance of the conodont species Baltoniodus triangularis in the type section. (Adapted from: https://en.wikipedia.org/wiki/Dapingian)

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