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  • Life expansion

    Life expansion occured in the Paleozoic era (or Palaeozoic), a term from the Greek words palaios...

  • Vegetation

    The Cambrian period had biofilms and microbial mats that developed on Cambrian tidal flats and...

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current00:35, December 24, 2017Thumbnail for version as of 00:35, December 24, 20171,024 × 818 (435 KB)Br-jsosa (Talk | contribs)