21.08.2015., Pokupsko, Croatia - Searching for shells in river Kupa Stjepan Sucec, from Pokupsko Village, in central Croatia, has found tooth of megalodon that terrorised the oceans 100 million years ago. The Megalodon Shark lived in oceans and seas around the world, including in the former Pannonian sea where the fossil was discovered and is regarded as one of the largest and most powerful predators in history. Photo: Zeljko Hladika/24sata/PIXSELL