A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

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

For many years, paleontologists have debated about whether there was a smaller relative of the Tyrannosaurus rex, or if those smaller fossils were really just awkward teenage versions of the king of ...

New research has identified a dinosaur "mummy zone" in a series of ravines near Lusk, Wyoming. It's produced two mummies of a fleshy dinosaur with ...

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

Nanotyrannus lethaeus was a fast, agile predator distinct from T. rex, with longer legs, stronger arms and a body built for ...

Scientists have raised concerns about the lack of Tyrannosaurus rex fossils for their research due to wealthy individuals buying them all. The mighty T. rex is one of the most iconic dinosaurs, easily ...

There are literally decades of research... based on a premise that this article overturns,” said one paleontologist.

(NewsNation) — More Tyrannosaurus rex fossils are landing in the hands of wealthy private collectors through the luxury auction market, which is affecting how many of the treasured species are being ...

A famous and expensive T. rex fossil has turned up after vanishing 2 years ago. It’s extremely rare to find a complete skeleton of a dinosaur. It’s rarer still that such a skeleton needs to be found ...