Friday, August 10, 2012

Carbonaceous Filmed Pelecypod Fossil

This interesting fossil is some sort of clam preserved by carbonaceous film. It was found in the Lexington Limestone of Franklin County, Kentucky. The name might be a Psiloconcha sp.  If you look at the picture of the matrix plate, it was fossilized in place with a number of other sea creatures. In addition, a brachiopod imprint appears in the matrix as well. Also the clam might have some calcite crystals at one end of it.

Thanks to Lawrence for these fossils.