I found it in the lagoon at lowest tide in the inlet at juno beach in jupiter florida a couple of weeks ago when I was sifting through sand alongside about 4 small mid size boulders that were catching all the shells and things that were gathering at the bottom side of those boulders. They were the perfect size to sit down on and just dig as deep as I could and pick up any and all things I felt between my fingers. This is one of a few things bone I found. The other item I found I think may possibly be an intact extinct giant sloth finger or phalnges or whatever. And possibly the complete bottom of the bolt of petrified lightning...

1 inch wide and two inches long