Over at [Only registered users see links. ] is
an article, with many images of fossil plants, explaining the occurrence and
deposition of an excellently preserved 300 million year-old
Pennsylvanian-age (Upper Carboniferous) fossil forest exposed deep within a
coal mine in eastern Illinois. Be sure to click on the images at the bottom
of the page to view the many fossil plants.
Fossil Plants Of The Ione Basin, California [Only registered users see links. ]
To view a chunk of valuable high-grade montan wax-bearing lignite (low grade
coal) from the Middle Eocene (roughly 48-45 million years old) Ione
Formation, western foothills of the Sierra Nevada, plus a photograph of
California's only active, operating commercial coal mine--it's located in
Amador County--jump on over to [Only registered users see links. ] .