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

Now, a research team says new evidence resolves the case. The latest clue comes from a complete skeleton — first uncovered in Montana in 2006 — that scientists say identifies the mystery reptile as ...

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

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

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or ...

The new skeleton is dubbed ‘Dueling Dinosaurs’ because it was found intertwined with the bones of a Triceratops ...

Scientists at the NC Museum of Natural Sciences have found that what was believed to be a juvenile T.rex skeleton is instead ...

One of the most spectacular Tyrannosaurus rex skeletons in existence sold for millions of dollars Tuesday at a Switzerland auction. The well-preserved and brilliantly restored fossil fetched 5.5 ...

Dinosaur fans got a glimpse of a Tyrannosaurus rex skeleton as it went on display in Singapore Friday before an auction next month, as experts slammed the big-money bone trade as "harmful to science." ...

Nearly 300 Tyrannosaurus rex bones that were dug up from three sites in the United States and assembled into a single skeleton sold Tuesday at an auction in Switzerland for 4.8 million francs ($5.3 ...