Researchers claim to have new evidence that fossils found in the 1940s are not of a juvenile T-Rex, but of another distinct species: the Nanotyrannus. Not all paleontologists are convinced.

T. rex still reigns as the king of dinosaurs, according to scientists who on Monday argued against a contentious hypothesis advanced this year that the mighty meat-eater Tyrannosaurus should be ...

Is T. rex really three royal species? Paleontologists cast doubt over new claims. A new study based on private fossils claims that Tyrannosaurs are kings, queens, and emperors.

Researchers: Earlier study breaking T. rex into 3 different species was wrong By Clyde Hughes A visitor takes a photo of the Tyrannosaurus rex at the Saint Louis Zoo in April 2021.

T. rex, meaning “tyrant lizard king,” has been the sole species of the genus Tyrannosaurus, recognised since the dinosaur was first described in 1905. A genus is a broader grouping of related ...

Should T. rex be 3 species? New study sparks fierce debate. If a controversial new study is right, famous fossils such as Sue and Stan aren’t T. rex after all.

The study team’s conclusion was that T. rex was not a single, unchanging dinosaur but may have had two equally terrifying sibling species. “All three species were 6-7 tonnes with similar ...

If there was ever a dinosaur with celebrity status, it has to be Tyrannosaurus rex. But wait. What if some of those iconic skeletons are not exactly T. rex? Make no mistake, they are tyrannosaurs ...

WASHINGTON (Reuters) - A group of researchers is proposing that Tyrannosaurus, the most famous of all dinosaurs and the ultimate apex predator, actually ...

T. rex, meaning "tyrant lizard king," has been the sole species of the genus Tyrannosaurus recognized since the dinosaur was first described in 1905. A genus is a broader grouping of related ...