Temnodontosaurus

Temnodontosaurus was an ichthyosaur from the Early Jurassic, some 198 and 185 million years ago (Hettangian - Toarcian), in Europe (England & Germany). It was a large genus, exceeded 12 meters (30 ft) in length.

Classification
It is the only genus in the family Temnodontosauridae.[2] T. risor was found to be a juvenile of T. platyodon.

Paleobiology
Temnodontosaurus eyes were approximately 20 cm (8 in) in diameter making them the largest of any known vertebrate. Despite the impressive size of their eyes, temnodontosaurus had blind spots directly above their head due to the angle at which their eyes were pointed. They were powerful swimmers with great stamina and could descend into the deepest areas in the Jurassic sea to catch their prey.