Calamites fossil, Pennsylvanian age 300 million year old

Description

This is a 4.5" x 2.5" x 1" Pennsylvanian age, 300 million year old fossil of a Calamites which was a plant that resembled bamboo but is actually related to modern day rushes.  This particular piece shows a flattened full round interior cast of a section of the plant along with some of the original plant material preserved as coal.  Excellent detail nicely presented and will make a nice addition to your collection.  This came from a coal mine in Alabama.