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 ...

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

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

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 ...