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Tiny fossils, big discoveries: Researchers reveal new clues about early ocean life
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phys.org

Tiny fossils, big discoveries: Researchers reveal new clues about early ocean life

More than 514 million years ago, long before dinosaurs roamed Earth, sponge-like creatures called archaeocyathids were already busy building some of the planet's earliest reefs—just north of Death Valley in present-day Nevada.
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