Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Animals
Animals Main Amphibians Birds Bugs Fish Invertebrates Mammals Pets Prehistoric Reptiles A-Z

Tylosaurus

Tylosaurus may have ruled the Late Cretaceous seas because all other would-be competitors, such as ichthyosaurs, were already extinct. Though they evolved from terrestrial lizards, the paddle-like limbs of giant mosasaurs like Tylosuarus were useless on land.

Tylosaurus Proriger Profile Page