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Where is the Devonian-Carboniferous boundary defined?
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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 Devonian-Carboniferous boundary is defined by a Global Stratotype Section and Point (GSSP) located at La Serre in southern France.1