Fossil Focus of the Month – Edrioasteroids

Having grown up in Cincinnati, on several occasions we found Edrioasteroids which are cool as they look like a starfish on a flat brachiopod. Specifically, it isĀ  Isorophus cincinnatiensis on a Rafinesquina nasuta brachiopod. They generally lived on the bottom of the ocean and attached themselves to a hard object with the Rafinesquina being their favorite. Cincinnati has the Ordovician Layer which is about 450 million years old. Jan Barton

Edrioasteroid - Ohio

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