Dinosaurs are divided into two ranks according to the structure of the pelvis is Saurischia which looks pelvis and reptiles, including the herbivorous and carnivorous dinosaurs, hip, reptiles or fiddle Christopher Shea (from the Greek word hip. animal chameleon) is a fixed structure of the pelvis by a dinosaur ancestors. Saw Chris Chien, including dinosaur theropod. (Carnivorous dinosaurs walked on two legs) and a sauropod (plant-eating dinosaurs, long neck) dinosaur hip birds (from the Greek word for bird, hip) is another one dinosaur. Most walked on four legs and ate plants.
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