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

Now a research team said there’s new evidence that resolves the case. The latest clue comes from a complete skeleton — first ...

An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...

Now, a research team says new evidence resolves the case. The latest clue comes from a complete skeleton — first uncovered in ...

Specifically, whether or not certain fossils found in Montana belonged to a young Tyrannosaurus rex or a completely separate, ...

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's ...

A new analysis of a controversial tyrannosaur fossil reveals the dinosaur wasn't a teenage version of T. rex as once thought, ...

WOODLAND PARK, Colo. — A piece of history has found itself in the present thanks to the help of some modern technology, the skull of a rare and new genus of Tyrannosaur has been 3D printed into ...

Paleontologists have long debated whether small tyrannosaurs were their own species or simply teenage T. rexes. This debate ...

The fossil skull of a mystery tyrannosaur has been the subject of debate since it was discovered in the 1940s.

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

A remarkable fossil discovery in Montana may redefine our understanding of Tyrannosaurus rex, revealing that what was once ...