Lipleurodon was not a dinosaur, it was a type of swimming reptile called a Pliosaur that lived during the late Jurassic period about 160 million years ago. Pliosaurs were short necked versions of Plesiosaurs. Lipleurodon was a carnivore that ate Ichthyosaurs, fish and other plesiosaurs and it is considered by many to be the largest predator to have ever existed on Earth.

Above - Showing off its streamlined body; Lipleurodon cruises effortlessly across the sea bed.

Left - The business end; rows of long conical teeth set in jaws that were big enough and strong enough to literally slice its prey in half with a single bite.