Hi Fossil and rock hounds, I found this strange looking piece when looking through my shark teeth. Found it on Manasota Key beach, Florida. I thought it was some vertebrae bone but than I saw 2 barnacles in what might be a grouping of shells. It also has pockets of limestone and small black bones or rocks cemented in some of the pockets and has some weight to it. It is about 2x2". Posted 5 photos of different angles. Has anybody ever seen anything like this? What is it? Thanks All.