Petrocrania

Inarticulate
Order Neotremata
Superclass Craniacea
Late Ordovician -Cincinnatian

Petrocrania scabiosa

Found throughout the Cincinnatian but more abundant in the Richmondian. Ovals, sometimes with concentric rings on valve. The valves are so thin that often they will show the underlying ornamentation of the object to which it is attached. Most often found on Rafinesquina valves.

See Petrocrania found on field trips

Return to Brachiopod menu page

Back to the Dry Dredgers Home Page

Photos courtesy of John Tate, Jack Kallmeyer and Bill Heimbrock
Descriptions courtesy of John Tate
Web page development by Bill Heimbrock

The Dry Dredgers and individual contributors reserve the rights to all information, images, and content presented here. Permission to reproduce in any fashion, must be requested in writing to admin@drydredgers.org .
www.drydredgers.org is designed and maintained by Bill Heimbrock.