This tooth is from the largest shark ever known to live. The Carcharocles Megalodon sometimes ranged in size up to 60′ in length and weighed over 52 tons. This huge monster is the largest predatory fish that ever lived, second only in size to the sperm whale. Fossil teeth have been found that exceed 7 inches in length. These sharks lived in the Miocene period some 23 million years ago to the Mid Pliocene times, 3.6 million years ago. This specimen is from South Carolina.