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Kristen on history and fossils
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    0 starskristen | Shared With: Everyone - Mar 02 2007 | history, science, news, fossils
    Spiky oddball prowled ocean half billion years ago - Yahoo! News

    Half an inch long but still plenty creepy ...

    Quoted: A spectacularly quirky creature with long, curved spines protruding from its armored body prowled the ocean floor half a billion years ago near the dawn of complex life forms on Earth, scientists said.

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