Daily Mail on MSN

There's a new T rex in town! New species of mosasaur measuring 43 FEET long terrorised the seas

Tyrannosaurus rex might be the most feared dinosaur to ever walk the Earth, but there was once another T. rex that terrorised ...
Live Science on MSN

There's a new T. rex from the dinosaur age — and it ruled the seas with a skull-crushing bite

The newly described mosasaur Tylosaurus rex spanned up to 43 feet (13 meters) long and may have been one of the fiercest marine predators of the dinosaur age.