Some fern plant fossils from the famous Carboniferous fossil locality in Saint Clair, Pennsylvania.
Part 2 of digging fern fossils in St. Clair, PA. Splitting a couple slabs at home. Carboniferous, 300+ million years old. Species include pecopteris, alethopteris, sphenophyllum, and many more.
Digging Carboniferous fern plant fossils at an old coal strip mine in Saint Clair, Pennsylvania, U.S.A.. The white color is the mineral pyrophyllite, which is a pyrite psuedomorph. They are dated at around 300 million years old.