Ophthalmosaurus

Ophthalmosaurus were a group of marine reptiles belonging to the famous Ichthyosaurs. A powerful tail propelled the long, barrel-shaped yet streamlined body through the water with broad front paddles providing steering. The largest eyes in the animal kingdom, after which they are named, allowed Ophthalmosaurus to see in the dim and murky depths. A ring of bone protected these large eyes from the effects of pressure during deep dives. The long, sparsely toothed jaws were perfect for catching fish and the squid-like animals of the time. Major fossil finds have been from Europe, North America and Argentina.