Yutyrannus, meaning "feathered tyrant," is one of the largest known dinosaurs to have had feathers. elaborate
Amargasaurus had extremely long neck spines that likely supported a pair of skin sails or fleshy humps, unlike any other known sauropod. elaborate
Gigantoraptor, despite its name, wasn't actually a raptor; it was an oviraptorosaur, a group of feathered dinosaurs more closely related to birds. elaborate
Archaeopteryx fossils show evidence of both reptilian teeth and feathered wings. elaborate
Heterodontosaurus had different shaped teeth – some like incisors for cropping plants, others like canines for defense, and molars for grinding. This diverse dentition is unique among early ornithischians. elaborate
