These trilobite fossils are called  Isotelus maximus .  The fossil dates to the late Ordovician Period. It is Ohio's state fossil. It ...

This fossil fish is called  Ctenothrissa signifer .  It was found in the Hjoula limestones of Lebanon. The fossil dates to the Upper Cret...

This starfish fossil was found in Cincinnati, Ohio, USA. It is called  Promopalaeaster speciosus . The layer is found in is the Fairmount...