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
Even bivalves looked different during the time of the dinosaurs, as these fossils of an ultra-fortified oyster, left, and armored cockle show.Smithsonian InstitutionAbout 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...










