The fossilized remains of a huge sea monster known as a mosasaur were recently discovered in Texas. The land of what is now Texas was submerged underwater around 80 million years ago. The predator ...

The rare bones of an ancient sea monster dating back 80 million years ... jaws belonging to Globidens alabamaensis, a 20-foot ...

These sea monsters grew upwards of 40 feet (12 meters ... such as the sharp-toothed shark Cretoxyrhina and the giant mosasaur Tylosaurus. Like all plesiosaurs, Styxosaurus's limbs were two ...

Other fossils found at the same site suggest the egg could have belonged to a giant marine reptile called a mosasaur, although it is unclear whether the egg was laid on land or at sea. The study ...

similar to a sea turtle or humpback whale. The shape of the spine also indicates that the species may have had a dolphin-like dorsal fin, a first for mosasaurs. Since 2010, the Wakayama ...

The Pembina Gorge offers everything from 80-million-year-old mosasaur bones to the beauty of steep valley cliffs towering over small, isolated prairies and pockets of wetlands. Pembina Gorge in ...

The Pembina Gorge offers everything from 80-million-year-old mosasaur bones to the beauty of steep valley cliffs towering over small, isolated prairies and pockets of wetlands.

The short-necked plesiosaur likely had few enemies, but those that attacked were some of the fiercest monsters of the seas, including sharks with razor-sharp teeth and the giant mosasaur Tylosaurus.