1. Heterodontosauridae has been shown to be the basalmost group within Ornithischia . 2. The entire dinosaur order ornithischia was composed with herbivores dinosaurs. 3. Dinosauria is then divided into the two traditional orders, Saurischia and Ornithischia . 4. Nominating with Ornithischia since I don't know which is more popular. 5. Ornithischia is well-supported as one of the two major groups in the Dinosauria.6. Collectively, dinosaurs as a clade are divided into two primary branches, Saurischia and Ornithischia . 7. Ornithischias and theropod dinosaurs are not as common as sauropods but still consist of much material.8. The presence of premaxillary teeth is a plesiomorphic character because it is inherited from earlier Ornithischia . 9. The ornithischia and sauropodomorpha are both. 10. In fact, I was the one who proposed ornithischia -stub when it was previously proposed.
