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When did the Frasnian Stage occur?
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Devonian Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the early Devonian Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The Frasnian Stage occurred between 382.7 million and 372.2 million years ago. It represents the lowermost of the two standard divisions of the Late Devonian Period and is part of the Upper Devonian Series.12