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Contact: Cheryl Dybas
National Science Foundation

Map Showing Paleogeography During the Permian-Triassic Boundary 252 Million Years Ago

Caption: This shows paleogeography during the Permian-Triassic boundary extinction 252 million years ago.

Credit: Thomas Algeo

Usage Restrictions: None

Related news release: Global extinction: Gradual doom as bad as abrupt

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