Hello I found this about 12 years ago and I was young when we went on a fossil dig on the peace river in Florida. I went of the path of the fossils to see if there was something upstream and at first I thought it was a fossil turtle shell so I put it in my collection and didn't tell my tour guide what I found(looking back I really should have told him) because I thought it was just a common turtle shell. It has little peices of sand or quarts impeded in it with a weird design or pattern. I just went through my old dusty collection and I realized this might be somethin man made any thoughts?
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