All--
I am a total newbie to fossil identification. I know a fossil when I see one. Sometimes. Maybe. In any case, here is one I found on some property we own in the southern Missouri Ozarks, south of Springfield, MO and just north of the Arkansas line. Will you please tell me what it might be? I found it approximately 300 feet above a river and 10 feet below grade in the side of an excavation for a house we are building. I SHOULD have measured the diameter. However, the diameter is about 2". (All suggestions for future ease of identification purposes are appreciated.)
Thanks!
--Bill