1, carnivorous dragon bell min class
Carnivorous dinosaurs first refer to all kinds of large theropods, with huge heads and huge teeth. Unlike coelomosaurs, coelomosaurs are smaller in size and lighter in bones. The largest carnivorous dragon is Mapulong, belonging to Allosauridae and Allosauridae, with a maximum weight of 12 ton.
2. Osteosuborder
Coelomosaurus, light and flexible, may be carnivorous in the early stage, omnivorous in the later stage, and some feed on eggs (as toothless as a bird dragon).
3. Protosauropod
Protosauropod, bipedal, omnivorous. The head is not big, the top surface is smooth, the orbit is larger than all the holes in the head, the tear bone is slender, the hole in front of us is gourd-shaped, and the occipital condyle is larger. The mandibular joint is lower than the dentition surface, with small teeth and short crown. There are weak longitudinal edges on both sides, and a small amount of sawtooth structure can be seen in the front edge, and the tooth tip is not sharp. The neck is long, the nerve spines and transverse processes are underdeveloped, and the dorsal cone is concave. At least 23 anterior vertebrae are recommended, 3 healing vertebrae are recommended, and the anterior coccyx is higher.
4. ornithopoda
Ornithopoda is the dinosaur with the most fossils, and its content is also very complicated. It walks on two feet or four feet. The oral cavity is generally flat, and there is a single anterior tooth bone in front of the mandible. Iguanodon, the earliest dinosaur discovered by people and recognized by science, belongs to this category.
5.ceratosaurus
Ceratosaurus, or Ceratosaurus, refers to a branch of Ceratosaurus, a quadruped herbivorous dinosaur with a body length of 9 meters. They live in groups and eat plants for most of the day, just like a group of huge sheep.