Stigmaria Fossil Root of Lycopsid Tree

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Stigmaria Fossil Root of Lycopsid Tree:
$210.00

Stigmaria fossil root of Lycopsid tree
Remarkable skin details.Size: 12 2/8\" x 4 1/2\" by 2\" thick
Description: Stigmaria is a form genus for tree roots of Carboniferous coal forest Lycopod trees such as Sigilaria and Lepidodendron.So, is this one mineral or bituminous coal?Yes, it did, in part, start the transformation to coal.
Lycopodiophyta appear in the fossil record in the Silurian in conjunction with many other vascular plants, and led to the trees that would dominated the equatorial landscape in the Mississippian and Pennsylvanian periods.North America was at the equator during the Carboniferous (290 to 359 myo) There were extensive, hot and swampy forest with Pteridospermatophyta (sees fern) and huge Lycopodiophyta trees, Sigillaria and Lepidodendron, some on the order of 30 meters tall with trunks a meter or more thick.Note the round nodes on the surface of this fossil, which is where small roots grew out in all radial directions.