Ordovician Cephalopods

Pictures of a variety of Ordovician Period cephalopod molds. Most of these fossils were found east of Louisville, Kentucky in the Grant Lake Formation.

This first picture is of an unknown cephalopod found in Carroll County, Kentucky in the Kope Formation.









These last two images are of cephalopods that have aragonite (or brown calcite) shells. They were found in the Kope Formation in Carroll County, Kentucky. The bryozoan coating seems to helped preserve details of the shells over time.

Ordovician Bryozoans

The bryozoan fossil pictured were found in the Kope Formation east of Louisville, Kentucky. They are from the Ordovician Period and members of the suborders of Halloporina.

Brachiopod Rafinesquina

The Ordovician Period brachiopod found near Louisville, Kentucky. These specimens were found in the Grant Lake Formation. It is called Rafinesquina and is probably named after the French biologist: Constantine Rafinesque. Interesting fact is that while he died in Philadelphia, his body was later transferred back to Lexington, Kentucky. He is buried at Transylvania University there where he taught in the early 1800s.

These specimens were cleaned a few days ago using air abrasive cleaning techniques.