Gargantuan precursors of the white shark, megalodons once boasted enormous serrated teeth growing as long as six inches.
When Floridian Michael Nastasio, owner of Black Gold Fossil Charters, stumbled on his first megalodon tooth fossil on a beach in Venice, he was hooked on the hunt. After getting certified as a diver, he started taking tours out into the Gulf of Mexico in seek of the colossal chompers. He’s found thousands of them over the years; most, however, were either broken or less than the magic 6-inch mark.
