At the twilight of the age of dinosaurs, an agile and vicious predator named Nanotyrannus prowled western North America, ...

Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...

The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand ...

Palaeontologists have argued for decades over whether certain fossils are young Tyrannosaurus rex or another species entirely ...

An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...

"The fossil, part of the legendary 'Dueling Dinosaurs' specimen unearthed in Montana, contains two dinosaurs locked in ...

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's ...

“This is the biggest dinosaur discovery of the decade, and I am proud that it is happening right here in North Carolina,” Stein said, going on to praise the state’s public universities and public ...

By sharing details of her seafaring life, a young designer found an audience for her cozy game about cleaning polluted ...

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

The Nanotyrannus's small skull has been the source of debate among dinosaur experts for at least four decades, according to ...

Researchers say they have uncovered a case of mistaken identity and found evidence of a species called Nanotyrannus lancensis.