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Which conodont marks the beginning of the Changhsingian Stage?
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Permian Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins near the end of the Permian Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The beginning of the Changhsingian Stage is marked by the first appearance of the conodont Clarkina wangi in the fossil record. This boundary was established by the International Commission on Stratigraphy (ICS) at the Global Stratotype Section and Point (GSSP) located in Bed 4 of the Changxing Limestone in Meishan, Zhejiang province, China.12