You searched for: Collection paleontology Remove constraint Collection: paleontology County Knox Remove constraint County: Knox Family Alethopteridae Remove constraint Family: Alethopteridae Order Medullosales Remove constraint Order: Medullosales Phylum or Division Pteridospermatophyta Remove constraint Phylum or Division: Pteridospermatophyta Scientific Name Alethopteris sullivantii Remove constraint Scientific Name: Alethopteris sullivantii