Tylosaurus rex rewrites the story of giant sea predators, not just for its size but for what its bones reveal about mosasaur ...

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.

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the Netherlands, fueling the rise of the field of vertebrate paleontology.

Geologists have uncovered the fossil of a mosasaur, an ancient aquatic predator, in Mississippi. Often referred to as a “sea dragon” due to its imposing size and fearsome appearance, this prehistoric ...

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the Netherlands, fueling the rise of the field of vertebrate palaeontology (the ...

Scientists discover new marine T rex that was twice the size of great whites and ‘meaner than any mosasaur’ - Researchers say species had finely serrated teeth and was formidable marine predator ...

A newly identified mosasaur from Texas suggests that some ancient marine predators were larger, more powerful, and possibly ...

Long before humans existed, giant marine predators ruled the warm prehistoric seas that once covered much of North America. Among them was a newly identified species called Tylosaurus rex, a massive ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists discover new marine T rex that was twice the size of great whites and ‘meaner than any mosasaur’ Scientists have ...

Scientists have discovered a new marine dinosaur species that grew 43ft and terrorised the seas over 80 million years ago. Tylosaurus rex – T-rex for short –was a massive mosasaur reptile that lived ...