The Heterophrentis cyathiformis horn coral found in the Jeffersonville Limestone of Jefferson County, Kentucky.  Fossil is from the Middl...

This fossil plate contains the remains of plants found at the famous St. Clair, Pennsylvania site.  This plate was collected in the early...

UPDATE (November 2013): The web sites seems to have changed the location of the embedded video here is a link if above does not work:  ht...