By I_gotta_rock
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Root of a Lepidodendron (scale tree) with rootlets radiating out at right angles along both sides. The white powder highlighting the imprint is iron oxide, most likely pyrophyllite, left over from the actual plant.
Lewellyn Formation (same formation that runs through St. Claire)
Lackawanna County, PA
Pennsylvanian age
Photo Information
- Taken with Apple iPhone 5c
- Focal Length 4.1 mm
- Exposure Time 1/20
- f Aperture f/2.4
- ISO Speed 50
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