These horn corals are on display at the Smithsonian's Museum of Natural History in Washington, D.C.  They are located in the A...

Worm tube fossil called Cornulites .  Existed in the Ordovician Period.  Fossil found in the Kope Formation of Carroll County, Kentucky. ...

A Bellerophon percarinatus fossil of a Pennsylvanian Period snail.  It was found in the Breathitt Group of Hazard, Kentucky.  This cr...