Trilobites of Black Cat MountainA photographic guide to Oklahoma's Devonian trilobites. The geological history of Coal County, Oklahoma. Descriptions of rock formations where trilobites are found. Excavation and restoration of trilobites. A photographic atlas of the Lower Devonian trilobites of Oklahoma, with helpful information to aid in their identification. Trilobites are a well known fossil group, possibly second most famous only to dinosaurs. With their easily fossilized