8.2" Pennsylvanian Fern (Sphenopteris) Plate - Kentucky

This is a 8.2" fossil seed fern (Sphenopteris) plate, from the Breathitt Formation, Leslie County, Kentucky. This specimen contains scattered sections of leaflets, pinnules (branch of leaflets) and stalks. There is a section of Calamites stalk on one corner of the plate. Both come from the Late Carboniferous, Pennsylvanian aged forests that formed the coal shales of Kentucky and Ohio.

Sphenopteris is genus of seed fern, extinct species of fern that reproduced from seed as opposed to sporophyte reproduction of most modern ferns. Calamites is an extinct genus of jointed-stemmed plant, closely related to modern horsetails.

It comes with an acrylic display stand.