Art illustration - Oceans & Seas - Great White Shark: (Carcharodon carcharias) It is in the warm and temperate waters of almost all oceans. It existed since the Miocene. The oldest known fossils White Shark date back some 16 million years ago. megalodon and white sharks are distant relatives. adults is 4 to 5.5 m (being lower males than females) are characterized by their great strength and fusiform body, in contrast to typically forms look crushed other sharks.