Fern
Pennsylvanian
Francis Creek Shale
Pit 11, Kankakee County
Illinois, USA.

A beautiful Pennsylvanian fern preserved in the Francis Creek Shale. The fossil captures the delicate frond of an ancient Carboniferous plant, offering a direct glimpse into the lush forests that once covered the region. Preserved in a half concretion, this is an excellent example of classic Mazon Creek plant preservation.
95mm in 199mm half concretion