Here is a Devonian coral found in Jefferson County, Kentucky in Jeffersonville Limestone. It is a Phillipsastraeidae called Cyathophyllum c...

Here is a Devonian coral called Favosites (Emmonsia) eximia that was found in Clark County, Indiana. I have been experimenting with photog...

Found in Louisville, Kentucky in Louisville Limestone. Appears to be the Silurian coral, Cystihalysites nexus .