Calamites fossils found in the Breathitt Group of Hazard, Kentucky.  These fossils were formed in the eastern Kentucky coal fields durin...

 Pennsylvanian Period (Carboniferous for those outside the United States) plant fossils found in the Breathitt Group.  Found in Hazard,...

If Indiana is known for a particular fossil, it has got to be the crinoids of Crawfordsville.  These prepped plates are on display on the...