Researchers may have discovered Mississippi's largest ever mosasaur after pulling a Cretaceous-aged fossil out of a riverbed ...

Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

13 x 8.25 in. (33 x 21 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...

With an incredible history and mysterious extinction, these fascinating creatures continue to puzzle scientists to this day.

This is bigger than most dinosaurs walking around on land ... about the time dinosaurs and about 75% of all life on Earth is thought to have become extinct. Starnes said finding a mosasaur ...