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Contact: Margaret Fraiser
University of Wisconsin - Milwaukee

Fraiser with Fossil Record of Bivalves

Caption: Margaret Fraiser, UW-Milwaukee assistant professor of geosciences, shows fossils of the few survivors of the Permian-Triassic mass extinction, the most severe in Earth's history.

Credit: Alan Magayne-Roshak, UW-Milwaukee

Usage Restrictions: with the above photo credit.

Related news release: When bivalves ruled the world

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