Life on Earth originated about 3,000 million years ago, they started with tiny unicellular suschevstv. But only about 220 million years ago, as evidenced by the brand at the top end of the scale there was the time, the picture of the evolution of dinosaurs on Earth. Not all types of dinosaurs lived on the earth in the same period, with the passage of time, some have died, while the model for the evolution of the other. But overall, the dinosaurs lived on Earth about 160 million years ago. When compared with the period eetim people on Earth, it seems extremely short. In fact, during the reign of the dinosaurs of the last 50 times longer than the time that has elapsed since the appearance of man to the present. Therefore, the human figure at the bottom of the timeline was like a little piece. Humans and dinosaurs were contemporaries, they "missed" during the period.