Photomicrographs of local limestone samples below showing fossil fragments ... Due to the abundance of life in the Ordovician ocean, southwestern Ohio is one of the best Ordovician fossil collecting ...

Southwestern Ohio's limestone (a sedimentary rock ... Although local shales typically contain fewer fossils than the fossil-rich limestone with which they are interlayered, they nevertheless preserve ...

Upon entering the new Sears Dynamic Earth wing, the stunning dinosaur displays may grab your attention, but the space is much more than a visual feast.