For decades, a small tyrannosaur skull has divided paleontologists over whether it belonged to a separate species or a teenage Tyrannosaurus rex. New research anchored in the spectacular “Dueling ...

A dinosaur fossil thought to be a juvenile Tyrannosaurus rex is in fact a fully grown carnivore of a different species, according to researchers who believe they have finally settled a long-running ...

New research is trying to remake the case that fossils known as Nanotyrannus were their own species, rather than a teenage Tyrannosaurus rex. By Asher Elbein Asher Elbein previously wrote about ...

WASHINGTON, Dec 4 (Reuters) - Paleontologists for decades debated whether meat-eating dinosaur Nanotyrannus was actually just a juvenile Tyrannosaurus. But within a span of five weeks, the matter ...

A team of researchers published a rebuttal to an argument advanced by another group earlier in the year. The disagreement over the king of dinosaurs is far from over. By Jack Tamisiea The world’s most ...

No creature in the history of planet Earth sparks the imagination quite like Tyrannosaurus rex. But how do we separate the movie-monster myth from the actual animal? Victoria the T-rex, a traveling ...

WASHINGTON, Jan 11 (Reuters) - Scientists reassessing a partial skull first unearthed in 1983 in southeastern New Mexico have concluded that the fossil represents a new species of Tyrannosaurus - the ...

More than 66 million years ago, a “tyrant lizard king” ruled western North America: the fearsome predatory dinosaur Tyrannosaurus rex. But how large was this monarch’s royal family? Could what we call ...

Since its discovery in 1902, there’s only been one known type of Tyrannosaurus: the rex. However, a new study says there were three types of Tyrannosaurus, based on differences in fossils' femurs and ...

University of Southampton provides funding as a member of The Conversation UK. An icon from the age of dinosaurs, Tyrannosaurus rex has featured in everything from blockbuster movies to the shape of ...