Definition for Revision history of "Devonian"

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  • (cur | prev) 18:57, 30 September 2013Robertling (Talk | contribs). . (221 bytes) (+221). . (Created page with "The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 419.2 ± 3.2 Mya (million years ago), to the beginning of th...")