|A vegetarian dinosaur with the silhouette of a flesh-ripping velociraptor, whose fossilized remains were unearthed in southern Chile 13 years ago, is a missing link in dinosaur evolution, say researchers. An inverted, bird-like hip structure and flattened, leaf-shaped teeth prove an exclusively vegetal diet, not a meat eating one. Chilesaurus is more closely related to a group including Triceratops and the three-tonne Stegosaurus.|
The first dinosaur emerged some 228m years ago. The new findings support the idea that Chilesaurus is the 'missing link' between the T-Rex Family and Herbivores. Theropods and ornithischians may have shared a common ancestor as early as 225m years ago.