Fossils in Cincinnati

Well I returned some movies to the library which is close to my son's house. On the way home I noticed some rocks that looked like they had fossils in them. They did.

Today I went and found some specimens. There is coral and clams and crinnoids which look like little tires. Apparantely the whole area around southern Ohio and northern Kentucky is loaded with them.

Here are a few representative pictures with a penny for reference.