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Showing results for tags 'coal balls'.
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Paleontologic Data Fossilized on IBM 8” Floppies Posted April 13, 2020 by Ben Muddiman, Ivo Duijnstee and Cindy Looy University of Chicago Museum of Paleontology Yours, Paul
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Fusain (Evidence Of A Forest Fire 307 Mya) [Edited]
Stocksdale posted a topic in General Fossil Discussion
EDIT: These are fusain and not "Coal Balls." They are concretions of fossilized charcoal wood, showing evidence of a forest fire. Note from Jack: (copied from below) These were collected in a Mazon Creek spoil pile from an older underground mine. I understand that the older underground mines would bring up everything from the seam of colchester coal and overlying shale. Then at the surface, they'd remove the "gob" -- non-coal stuff like these and add to the pile.
