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

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

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

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

New research confirms the Nanotyrannus dinosaur was not a young T. rex, but a separate species, reshaping our view of ...

Now, a research team says new evidence resolves the case. The latest clue comes from a complete skeleton — first uncovered in ...

For many years, paleontologists have debated about whether there was a smaller relative of the Tyrannosaurus rex, or if those ...

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

A groundbreaking analysis of the ‘Dueling Dinosaurs’ fossil has finally resolved a long-standing mystery in the world of ...

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

More than 60 million years on from its final day on Earth, there's a dinosaur we owe an apology. Paleontologists confirm that the Tyrannosaurus rex locked in combat with a Triceratops in the famous ...

A new analysis of a controversial tyrannosaur fossil reveals the dinosaur wasn't a teenage version of T. rex as once thought, but instead a distinct miniature dinosaur.