Top 10 3D Metal Cretaceous Dinosaur Model KitIf the history of the earth so far is compared to one day, the earth was born in the early morning, then the carnival of terrestrial life will not kick off until nearly ten o'clock in the evening. . . The entire dinosaur family stayed for a total of 50 minutes, while humans had only just appeared for 47 seconds. They lived on Earth for about 170 million years, from the earliest dinosaurs to their extinction in the Cretaceous period 65 million years