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Fossil Seed Fern Fronds from Pennsylvania Age: Pennsylvanian Formation: Llewellyn Formation Location: Near St. Clair, Pennsylvania Size: Plate is 11.5 inches across
This is a large plate of plant fossils from the now-closed location at St. Clair, Pennsylvania. The fossils are preserved as a thin film of white pyrophyllite on black shale. The detail of the fossils is quite nice, and the plants are nicely showcased on the large plate of shale. Thare are different types of ferns preserved. This is an affordable example of a large plate of fossil fern fronds from the Coal Regions of Pennsylvania.