This fossil remnant is the most interesting find I had from a field trip to Franklin County, Kentucky (about 55 miles or 88 km east of Louis...

Aulacophyllum horn coral found in the Jeffersonville Limestone of Clark County, Indiana. The coral grew in the Devonian Period.

This coral is called Cladopora (Coenites) aculeata and is found in the Louisville Limestone. This specimen was found in Jefferson County, ...