This fossil appears to be a  Dawsonoceras americanum  cephalopod. It was found the Osgood Formation at Napoleon Quarry in Ripley County Ind...

This bivalve fossil was found in Monroeville, Monroe County, Alabama in the Gosport Sand Formation.  It existed in the Eocene Epoch of th...

This posts shows some images of a snail fossil (appears to be  Busycon rucksorum Petuch 1994) of the Fort Drum Member, Nashua Formation ...