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How long did the Devonian Period last?
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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 Period, an interval within the Paleozoic Era, spanned approximately 60.3 million years. It began about 419.2 million years ago and concluded approximately 358.9 million years ago.1