The ancestors of dinosaurs can be traced back to the early Triassic period about 240 million years ago. At that time, there was a group of organisms called Archosauria on the earth. Primitive reptiles are divided into two major categories: Crocodylomorpha and Dinosauriformes. Dinosauroids are the ancestors of dinosaurs, and they evolved from another extinct branch of primitive reptiles.
Dinosauroids first appeared about 240 million years ago. The original dinosauroids were very small and shaped like a canine. Their upright walking posture is also different from reptiles, which is an important feature of dinosaurs. As time goes by, some dinosaur-shaped superorders gradually evolved into real dinosaurs, such as Archeopteryx and Ornithora, which are all considered to be one of the ancestors of dinosaurs.
In general, the ancestors of dinosaurs are dinosaur-shaped superorders, which originated from primitive reptiles on the earth about 240 million years ago. Over tens of millions of years of evolution, dinosaurs gradually developed different characteristics and forms, becoming one of the most spectacular and magical creatures on earth.
