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mass extinction

  1. The Extinction of Ammonites

    The Extinction of Ammonites

    This excerpt from Monarchs of the Sea: The Extraordinary 500-Million-Year History of Cephalopods by Danna Staaf is shared with TONMO to celebrate the book's birthday. Sudden Death To understand what caused the end-Cretaceous mass extinction, the first challenge was to recognize that it...
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