Question: what are some of the similarities and differences between ornithischians and saurischians?
Answer: Saurischia Versus Ornithischia: Ornithischia The term Ornithischia refers to dinosaurs with a “bird hip” structure. Consequetly these dinosaurs are often referred to as bird hipped dinosaurs. Ornithischians were herbivorous dinosaurs and were more numerous than saurischian dinosaurs in terms of population count.