The dinosaur skeletons, found hidden in a museum collection in Mongolia, is an ancestor of the mighty tyrannosaurs.

Altogether, the pieces reveal a slender tyrannosaur that roamed Cretaceous Mongolia about 86 million years ago and was about ...

Scientists have discovered a new species of tyrannosauroid—the group of dinosaurs that includes Tyrannosaurus rex. The ...

Apex predators, like the Tyrannosaurus rex, eventually arose from smaller-bodied tyrannosauroid dinosaurs called Khankhuuluu ...

A reexamination of fossils found in Mongolia has revealed a previously unknown “missing link” species that led to dinosaurs ...

The fossils are 86-million-years old and have given scientists new information about tyrannosaurs evolved. Jared Voris, a PhD ...

Paleontologists have discovered a new species of dinosaur that belongs to the same group of the infamous Tyrannosaurus rex.

When you think of dinosaurs, you might imagine towering predators or gentle giants roaming prehistoric landscapes. But what ...

The 150-million-year-old specimen is valued at up to $6 million by Sotheby’s. Some paleontologists worry this auction and ...

Those bones belong to a new species, now named Khankhuuluu mongoliensis, or “Prince of Dragons.” This slim, fast-moving ...

A newly discovered dinosaur, pegged as T.rex's 'tiny cousin', has led to scientists reconsidering the creature's history.