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Ancient fossils show how the last mass extinction forever scrambled the ocean’s biodiversity

  • Written by Stewart Edie, Research Geologist and Curator of Paleobiology, Smithsonian Institution
Ancient fossils show how the last mass extinction forever scrambled the ocean’s biodiversityEven bivalves looked different during the time of the dinosaurs, as these fossils of an ultra-fortified oyster, left, and armored cockle show.Smithsonian Institution

About 66 million years ago – perhaps on a downright unlucky day in May – an asteroid smashed into our planet.

The fallout was immediate and severe. Evidence shows that about...

Read more: Ancient fossils show how the last mass extinction forever scrambled the ocean’s biodiversity

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