Fossil seed fern, Pecopteris sp., detail
Fossil seed fern, Pecopteris sp., from the Mason Creek (Illinois) formation. 300 million years old.
Size: 5100px × 3400px
Location: Massachusetts, United States
Photo credit: © Custom Life Science Images / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: carboniferous, fern, ferns, fossil, fossils, frond, fronds, illinois, islc, mason, mazon, nodule, paleobotany, pecopteris, pennsylvanian, plant, plants, prehistoric, pteridospermatophyta, pteridospermatophyte, rock, seed, stone