Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...

A remarkable fossil discovery in Montana may redefine our understanding of Tyrannosaurus rex, revealing that what was once thought to be juvenile T. rex specimens are actually a distinct species ...

Everything scientists believed about the T-Rex could be wrong after a study proved the existence of its smaller cousin.

How did these different dinosaur species interact? Did they hunt different prey? What did T. rex adolescence really look like ...

A new specimen of one of the most controversial species of dinosaur has the potential to overturn decades of research on the ...

A small dinosaur skull found in Montana 40 years ago was thought to be a young T. rex. Turns out it was a smaller, faster ...

The scientific community has made a discovery that may rewrite decades of research into the most famous predator to ever walk ...

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

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 ...

The debate over Nanotyrannus’ identity is finally over. A remarkably preserved fossil proves it was a mature species, not a teenage T. rex. This discovery rewrites how scientists understand ...

A fossil once locked in prehistoric combat has just rewritten one of paleontology’s longest-running debates — and upended what scientists thought they knew about Tyrannosaurus rex.

New research has identified a dinosaur "mummy zone" in a series of ravines near Lusk, Wyoming. It's produced two mummies of a fleshy dinosaur with ...