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22 August, 21:42

During which period did the first vascular plants appear? A. Cambrian B. Ordovician C. Silurian D. Devonian

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  1. 22 August, 23:06
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    Psilopsids were he first vascular plants which were in C. Silurian period!
  2. 22 August, 23:59
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    C. Silurian

    The first jawed fishes and uniramians (like insects, centipedes and millipedes) appeared during the Silurian (over 400 million years ago). First vascular plants (plants with water-conducting tissue as compared with non-vascular plants like mosses) appear on land (Cooksonia is the first known).
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