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*Yorkicystis*, the 500 million-year-old relative of starfish that lost its skeleton

By Samuel Zamora, Científico Titular (Paleontólogo), Instituto Geológico y Minero de España (IGME - CSIC)
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The discovery of a unique 510 million-year-old fossil in a Pennsylvania churchyard offers new clues into how early life evolved on Earth.The Conversation


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