Genuine fossil Megalodon tooth Cabochon wrapped in cold forged copper and hung on a 26” copper clad chain. 
Megalodon (Otodus megalodon) meaning "big tooth", is an extinct species of mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), from the Early Miocene to the Pliocene epochs. It was formerly thought to be a member of the family Lamnidae and a close relative of the great white shark (Carcharodon carcharias). However, it is now classified into the extinct family Otodontidae, which diverged from the great white shark during the Early Cretaceous.