The Age of Dinosaurs is a period of about 160 million years in Earth's history, starting with the Triassic period 230 million years ago and lasting until the end of the Cretaceous period about 66 million years ago. During this time period, many species of dinosaurs appeared on Earth, including Tyrannosaurus, Tyrannosaurus, Stegosaurus, and Ceratosaurus.
The Age of Dinosaurs can be divided into three main stages: the Triassic, Jurassic, and Cretaceous. In the Triassic, dinosaurs were relatively simple in species and not numerous. In the Jurassic, dinosaurs reached their peak, with many species and extremely large sizes. For example, the famous Diplodocus lived in the Jurassic. It is one of the largest known land animals, with a length of more than 30 meters.
In the Cretaceous, although the number of dinosaurs did not decrease, their number began to gradually decrease. This period is also an important node in the history of life evolution, because it marks the end of the Age of Dinosaurs and the rise of mammals.
After the dinosaur era ended, the Earth entered a new Paleogene period, when mammals began to become the dominant species on Earth, and humans gradually evolved.
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