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Why the Beach Hands You Clam and Snail Shells, Not Brachiopods
Shell Stories 5 min read

Why the Beach Hands You Clam and Snail Shells, Not Brachiopods

Pick up a shell on today’s shoreline and you are holding the long afterglow of one of Earth’s biggest turning points. A new Stanford-led study shows how the Great Dying 252 million years ago helped decide which shells would become the familiar stars of modern beaches.