Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation

Species Have Come and Gone at Different Rates than Previously Believed

Caption: A slab of limestone covered with fossils. This slab of limestone is about 450 million years old and is from an area in Ohio that is famous for its fossils.

Credit: Steven Holland, University of Georgia

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Related news release: Species have come and gone at different rates than previously believed