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Post Info TOPIC: Cryogenian period


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Cryogenian period
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The Cryogenian (from Greek cryos "cold" and genesis "birth") is a geologic period that lasted from 850 to 635 million years ago. The Cryogenian forms the second geologic period of the Neoproterozoic Era, preceded by the Tonian Period and followed by the Ediacaran.
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