Hadrosaurs had the largest number of teeth. Duckbilled dinosaur belongs to the herbivorous dinosaur of ornithopoda, which was the most prosperous dinosaur in the late Cretaceous. The duckbill widens at the front of the skull and the mandible, and its shape is very similar to the flat and wide "duck wing", hence the name. Hadrosaurs have an amazing number of teeth and special structures. In its wide mouth, there are more than 500 teeth on each gum, up, down, left and right. In this way, for a typical hadrosaur, the total number of teeth exceeds 2000.

Gap dragon

A dinosaur that seems to feel a little top-heavy is called gap dragon. This dinosaur has a strong body, powerful limbs and a tail about 5 meters long. It used to live in Canada and New Mexico.

Laishilong

Lai's dragon also has a crown, which may also have a strong decorative effect. Lai's dragon crown looks a bit like a comb, but it is much bigger than it. When Lai's dragon walks, it can walk on its hind legs and four legs.