Hyphalosaurus is a small aquatic lizard long neck that lives in the rivers of China. It looks like the Tanystropheus. Hyphalosaurus was the most aquatically adapted, with smoother, ladders flatter her parents, large and flattened tails for swimming, a long neck and webbed feet. Because the torso was quite rigid and members are not particularly suitable for aquatic life, Hyphalosaurus probably swam using mainly its high, flattened tail. The chest was barrel-shaped and made of thick, heavy bone ribs that would have helped Hyphalosaurus remain submerged. He feed on fish and aquatic invertebrate.
Hyphalosaurus made an appearance in "Dino vs Mammal ".