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Plants of the Lewellyn Formation

Plants of the Lewellyn Formation
I_gotta_rock
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The Carboniferous Lewellyn Formation runs through northern and central Pennsylvania and is the source of much of the coal in "Coal County." Along with the fossil fuel are much better preserved examples of ferns, horsetails, and confer relatives, as well as some rare insects. In addition to anthracite coal, it is composed of sandstone, siltstone and mudstone. 

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