This posts shows some images of a snail fossil (appears to be Busycon rucksorum Petuch 1994) of the Fort Drum Member, Nashua Formation of Ruck's Pit in Okeechobee County, Florida, USA. This animal lived in the Calabrian Stage (780,000 years ago to 1.8 million years ago) of the Pleistocene Epoch of the Quaternary Period.
Thanks to Mary Ann for giving me this fossil so many years ago.
