-At the beginning, Long Meilong, Allosaurus, Westerly Dragon, Primitive Dragon, Iguanodon Mutabula, Fearless Dragon, Horseshoe Dragon, High Kissing Dragon, Southern Ocean Dragon, Sinking Dragon, Kangnarong Desert Dragon, Fu Jinglong, Jinzhou Dragon Tenontosaurus, Primitive Bacchus has unearthed more than 2,000 pieces of dinosaur fossils (including bones, teeth, skin, eggs, feces, footprints, etc.) all over the world, and it has been identified that there are 2 orders, 7 suborders, 57 families

The main feature of sauropods is that the structure of ilium, ischium and pubis that make up the belt is similar to that of other reptiles, that is, the belt with three guns and three releases. It is divided into two sub-orders:

00 (1) theropod: Tyrannosaurus Rex, Deinonychus, Leptosaurus, Slender Dragon, etc.

00 (2) sauropods: Liang Long, Lei Long, Lufenglong, Mamenxilong, etc.

The main feature of flapping-wing machine is that the structure with bone is similar to that of birds, with the pubic bone backward, that is, the four-shot or four-release belt, as well as the front teeth and buccal muscles. It is divided into five suborders:

00 (1) ornithopods: Iguanodon, duck-billed dragon, etc.

00 (2) Ceratosaurus: protoceratops, Ceratosaurus, Parrotbill, etc.

00 (3) Ankylosaurus: Arthropod, Spinosaurus, Ankylosaurus, etc.

00 (4) Stegosaurus: Stegosaurus, etc.

00 (5 hours) Leo orders: thick-skinned monkeys, etc.