Pennsylvanian Fossil Fern (Lyginopteris) - Alabama

This is a 1.6" fossil fern (Lyginopteris), from the Pottsville Formation, Alabama. It is four pinna or leaflets. This specimen is well preserved with individual lobes visible.

Lyginopteris is genus of seed fern that contain extinct species of fern that reproduced from seed as opposed to sporophyte reproduction of most modern ferns.