Sapient Beipiaosaurus

Beipiaosaurus is a genus of therizinosauroid theropod dinosaurs from Early Cretaceous China. Before the discovery of Yutyrannus, it was the largest non-avian dinosaur known from direct evidence to have been feathered.

The exact classification of therizinosaurs had in the past been hotly debated, since their prosauropod-like teeth and body structure indicate that they were generally herbivorous, unlike typical theropods. Beipiaosaurus, being considered to be a primitive therizinosauroid, has features which suggest that all therizinosauroids, including the more derived Therizinosauridae, are coelurosaurian theropods, not sauropodomorph or ornithischian relatives as once believed.