Some of our area's unique geological features and the processes that occurred to form them are: The fossil content of local limestone shows the diversity of life in the late Ordovician period.

Eric Monceret and Sylvie Monceret-Goujon found one of the world’s richest and most biodiverse fossil sites from the Lower Ordovician period ... you’ll find brachiopods, trilobites, bivalved ...

Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...

Brachiopoda ("lamp shells") - Brachiopoda (or "lamp-shells ... Cincinnatian Series - The layer of exposed bedrock in southwestern Ohio composed of rock from the Upper Ordovician period. Clastic ...