One of two new plant-eaters found in Utah, the species has shaken up a branch of the dinosaur family tree, a new study says.

Scientists have unveiled a previously unknown tyrannosaur species that fundamentally changes our understanding of how the mighty Tyrannosaurus rex evolved. The newly identified dinosaur, named ...

WASHINGTON-In a humid, tropical jungle in southern China eons ago, a remarkably bird-like dinosaur with wing-like arms, a toothless beak and a dome-shaped crest atop its head became trapped in mud, ...

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 ...

Y’know how sometimes people will toss out an idea that sounds silly, or maybe even sounds silly on purpose, and then upon deeper thought it turns out to actually be a good idea? Meet Rexy, Roxy and ...