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

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

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

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

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

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

Misidentified bones that languished in the drawers of a Mongolian institute for 50 years belong to a new species of ...

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

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

For half a century, the fossils sat in the drawers at the Institute of Paleontology of the Mongolian Academy of Sciences in ...

Our city — the one of “Big Shoulders” — has always sought out the massive. Chicago has been home to the tallest building (when it was known as Sears Tower), the largest convention center ...