Turtles are in the class Reptilia, which includes snakes, crocodiles, and lizards. Marine turtles belong to the order Testudines, the first specimens date back 220 million years. Marine turtles are thought to have come from land turtles and freshwater turtles that lived about 230 million years ago in the Cretaceous period. The earliest sea turtle ancestor found so far is Desmatochelys padil…