How Plesiosaurus Swam Ancient Seas With Neck and Flippers In the ancient oceans, many fascinating marine reptiles lived, quite extraordinary, appearing to flaunt their long necks and slender bodies in elegant strokes of underwater grace. With its paddle-like foreflippers and hind flippers, the Plesiosaur was a sleek, elegant swimmer that stalked its prey into the shadows, a mystery still to many scholars. Plesiosaurus was one marine reptile whose body differed widely from those of other marine reptiles. Read More:- https://www.fossilageminerals.com/blogs/news/how-plesiosaurus-swam-ancient-seas-with-neck-and-flippers