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Which fossil marks the beginning of the Triassic Period?
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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 Triassic Period is indicated by the first appearance of the conodont species Hindeodus parvus.12