What you see in the pic are an extinct group of ferns called pteridosperms. This was Nature’s experiment with ferns that reproduced by seeds, instead of spores (all ferns, today, reproduce by spores). Why this group disappeared is something of a mystery, but to see something this old is such a treat. The fossil was a gift from a great customer of mine, Bill Beasy, a park ranger at Mammoth Cave National Park in Kentucky. Thanks Bill!