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

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology’s longest-running debates – whether Nanotyrannus is a distinct species, or ...

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

A fossil of two dinosaurs locked in battle shows the smaller of the pair wasn’t a young T. rex but a full-grown predator of ...

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

Scotty, the largest T. rex specimen on record, is on display at the Royal Saskatchewan Museum in Canada. Kumiko via Wikimedia Commons under CC BY-SA 2.0 Around 66 million years ago, the iconic and ...

A long-standing paleontological mystery may finally be resolved. Scientists have discovered a fossilized skeleton in Montana ...

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 ...

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

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Much of what we know about Tyrannosaurus rex, the largest and fiercest dinosaur of them all, we know from the skeleton of a ...