This fossil might be a Halysites louisvillensis? found in the Louisville Limestone of Jefferson County, Kentucky. Corals grew on the sea...

Fossil mold of a Calymene celebra? trilobite found in the Laurel Member of the Salamonie Dolomite of Nelson County, Kentucky. This animal...

Inoceramus sp. mega-blister pearl fossil found in the Niobrara formation of Gove County, Kansas. The extinct oyster that produced this b...