Using Erwin C. Stumm's book Silurian and Devonian Corals of the Falls of the Ohio, plates on pages 162-163 and described on page 78.

Here are actually two corals. The one listed in the picture is the hemispherical object but it is sitting on another coral. Using Erwin C. ...

Here is another fossil from the Louisville area found in a dump dirt pile. I used Erwin C. Stumm's book Silurian and Devonian Corals of ...