Approximately 160 million years ago, during the Age of Dinosaurs, giant marine reptiles ruled the seas. One such creature, an ...

A Kansas boy discovered a 15-foot-long tylosaurus fossil dating back 85 million years during a geology club field trip at a local quarry last year.

Kronosaurus Kronosaurus queenslandicus is a sort of large short-necked marine reptile called a pliosaur. How big was it?

There’s a newly crowned T. rex. This one, called Tylosaurus rex, was a tyrant of the sea and mosasaur spanning up to 43 feet ...

A giant marine reptile that dominated the seas 80 million years ago has been identified as a new species and named "Rex." ...

Experts say the predator had strong muscles and saw-like teeth, and lived around 80 million years ago. Find out more here.

By Will Dunham May 28 (Reuters) - Tyrannosaurus rex was a huge land predator during the twilight of the age of dinosaurs. But it was not the only T. rex that terrorized the Cretaceous Period. There ...

(Reuters) - The blue whale and other baleen whales, the gentle giants of the sea, sift huge quantities of tiny prey from ocean water using a filter-feeding system in their mouths. But they were not ...

(CNN) — The discovery of a giant marine reptile skull in the United States has revealed new theories about the speed of evolution and how quickly the process can produce diversity. The giant ...

April 17 (Reuters) - A fossil jawbone found by a British girl and her father on a beach in Somerset, England belongs to a gigantic marine reptile dating to 202 million years ago that appears to have ...

About one hundred and ten million years ago a shallow sea covered what is now arid inland Australia. Australia’s most ...

May 28 (Reuters) - Tyrannosaurus rex was a huge land predator during the twilight of the age of dinosaurs. But it was not the only T. rex that terrorized the Cretaceous Period. There also was a marine ...