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500-Million-Year-Old Mystery Fossil Rewrites Early Animal Evolution - SciTechDaily

  • |
  • Technology |
  • SciTechDaily |
  • 06-08-2025 |
  • 47

The top end of a specimen of Shishania, showing the three-dimensionality of its spines and their arrangement around an apical orifice. Credit: Zhang Xiguang A Cambrian fossil once thought to be a mo…

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