Description
5/8 Inch Edrioasteroid – Isorophus cincinnatiensis on part of a Rafinesquina brachiopod. Cincinnati, Ohio. One of the ambulacra is present. Rare. Found in the 1960’s off Compton Road. Ordovician layer- 450 million years old. Needs to be cleaned- might have another ambulacra present.
20mm round
