Stigmaria Fossil.
This Stigmaria is a form genus for tree roots coal forest Lycopod trees such as Sigillaria and Lepidodendron. The trees grew to 30 metres in height, 1 metre thick and flourished in hot and swampy forests.
Size 12″ x 3″ x 2″ inches.
The Carboniferous Period – 354 million years to 290 million years ago.