A Montana fossil reveals that Nanotyrannus, once thought to be a young T. rex, was actually a full-grown predator and it's ...

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

Scientists have proven Nanotyrannus was its own species, reshaping what we know about the predators that lived alongside T.

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

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

The new species is called Nanotyrannus. Compared to the well known tyrannosaurus rex, a nanotyrannus was more speedy and ...

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

How big was the Tyrannosaurus rex? Learn how, even though they may not have been the largest theropod, they’re definitely one of the most popular.

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

What we knew as a “teenage dinosaur” of the T. Rex family was actually a completely different and adult species. Apparently, ...

However, there's a bit of a "wrinkle," according to Thomas Carr, T. rex expert and associate professor of biology at Carthage College in Wisconsin. That's because there's a gap in the fossil record ...

"Stan" - A Tyrannosaurus rex dinosaur fossil skeleton is displayed in a gallery at Christie’s auction house in New York City. The fossil is named after the amateur paleontologist Stan Sacrison, who in ...