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 ...

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

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.

NC State University and the NC Museum of Natural Sciences discover the nanotyrannus, a smaller dinosaur once thought to be a teenage T-Rex ...

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.

T. rex's story has been turned on its head by a new discovery about one of the world's most famous fossil finds. One of the creatures locked in the “Duelling Dinosaurs” specimen is not a young T. rex ...

SUE the T. rex will make a third appearance at Liberty Science Center starting Saturday, bringing “the world’s most complete and best-preserved Tyrannosaurus rex specimen” back to Jersey City. The ...

An atmospheric river is moving through western Washington and expected to dump 1-3 inches of rain. by Lindey Wasson, Associated Press TOPICS: AUBURN, Wash. — Spectators cheered as participants ran ...

Fossils found 50 years ago were initially thought to belong to another species. Paleontologists have discovered a new species of dinosaur that was related to the infamous Tyrannosaurus rex. The dino ...