Definition for Revision history of "Silurian"

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  • (cur | prev) 18:56, 30 September 2013‎ Robertling (Talk | contribs)‎ . . (205 bytes) (+205)‎ . . (Created page with "The Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.4 ± 1.5 million years ago (mya), to the beginning of the Devonian Peri...")
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