In the Late Cretaceous, the region of South America that would one day become modern Argentina was a dramatic land indeed.

Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive apex ...

(Reuters) -A newly identified mid-sized dinosaur from Mongolia dubbed the "Dragon Prince" has been identified as a pivotal forerunner of Tyrannosaurus rex in an illuminating discovery that has helped ...

(CNN) — Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive ...

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Fossils found 50 years ago were initially thought to belong to another species. Paleontologists have discovered a new species of dinosaur that was related to the infamous Tyrannosaurus rex. The dino ...

“The snout bone was hollow rather than solid, and the bones around the eye didn’t have all the horns and bumps seen in T. rex or other tyrannosaurs.” Khankhuuluu mongoliensis, or a closely related ...