This is a fossil seed fern plate, from the Breathitt Formation, Leslie County, Kentucky. It contains a collection of stalks, pinnule (branch of leaflets) and leaflets of two different species of Neuropteris and Macroneuropteris. It comes from the Late Carboniferous, Pennsylvanian aged forests that formed the coal shales of Kentucky and Ohio.
Neuropteris and Macroneuropteris are genera of seed ferns, extinct species of fern that reproduced from seed as opposed to sporophyte reproduction of most modern ferns.
Comes with an acrylic display stand.