A new study reveals that fossils once believed to belong to a teenage Tyrannosaurus rex may actually belong to a separate species ...

North Carolina announces discovery of a new tyrannosaur species, Nanotyrannus, alongside T. rex from a study of the "Dueling Dinosaurs" fossils.

A new specimen of one of the most controversial species of dinosaur has the potential to overturn decades of research on the T rex.

This week, could the world’s first meteorite collision with a moving vehicle explain this Tesla’s melted windscreen? Of Earth ...

Jane, the dinosaur fossil housed at Rockford's Burpee Museum of Natural History, may not be a Tyrannosaurus rex as previously ...

A fossil once locked in prehistoric combat has just rewritten one of paleontology’s longest-running debates — and upended what scientists thought they knew about Tyrannosaurus rex.

Paleontologists have examined an exceptionally well-preserved, near somatically mature tyrannosaur skeleton from the Hell Creek Formation of Montana.

At the twilight of the age of dinosaurs, an agile and vicious predator named Nanotyrannus prowled western North America, resembling a smaller version of Tyrannosaurus - about a tenth the body mass - ...

Once thought to be a baby T. rex, was a separate, agile species that redefines the predator hierarchy of the late Cretaceous.

A major shake-up in dinosaur paleontology reveals that what scientists have long called "Tyrannosaurus" is actually two ...

The discovery of a small dinosaur has ended one of paleontology’s longest-running debates, revealing that Nanotyrannus was ...

The “dueling dinosaur” fossil still leaves more questions than answers as scientists now attempt to determine their causes of ...