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Silurian World

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Silurian World

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Date Posted:June 14th, 2006
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Description: The Silurian is a major division of the geologic timescale that extends from the end of the Ordovician period, about 443.7 million years ago, to the beginning of the Devonian period, about 416.0 million years ago.
During this period, the Earth entered a long warm greenhouse phase, and warm shallow seas covered much of the equatorial land masses. There is evidence that the Silurian icecaps were less extensive than those of the late Ordovician glaciation. The melting of icecaps and glaciers contributed to a rise in sea level.
The first fossil records of land plants start to appear during this period.


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