(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 ...

Khankhuuluu mongoliensis was slender with features like no other member of the tyrannosaur family tree. This illustration depicts how the slender Khankhuuluu mongoliensis may have appeared as it ...

Khankhuuluu mongoliensis lived about 86 million years ago It was the precursor to the lineage called tyrannosaurs It was 13 feet (4 meters) long and 1,600 pounds (750 kg) June 11 (Reuters) - A newly ...