Talk about the development of dinosaurs, that is to say, the development of dinosaurs.

Dinosaur is a terrestrial vertebrate with diversified advantages in Mesozoic, which once ruled the global terrestrial ecosystem for more than 654.38+0.6 billion years. It first appeared in Triassic period 230 million years ago and died at the end of Cretaceous period about 65 million years ago.

From the early Jurassic to the late Cretaceous, the dinosaur family adapted to the environment and developed rapidly, which led to the diversification of dinosaurs and the increase of dinosaur population, which gave dinosaurs an advantage and enabled them to dominate the earth's ecosystem. There are many kinds of dinosaurs, and their shapes and habits are quite different. Among them, the big one can be as big as dozens of elephants combined; Small, but almost like a chicken. As far as food habits are concerned, dinosaurs have mild vegetarians (dinosaurs that ate plants) and fierce carnivores (dinosaurs that ate animals), as well as omnivorous dinosaurs that ate both plants and plants.