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4,500-570 million years ago
4,500 million years ago- Origin of Earth
3,500 million years ago- Origin of Life |
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| 570-248 million years ago |
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513-570 million years ago-
Earliest known vertebrates |
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| 436-513 million years ago |
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| 412-436 million years ago |
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| 354-412 million years ago- Earliest known tetrapods |
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| 290-354 million years ago |
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| 248-290 million years ago |
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| 205-248 million years ago- earliest known dinosaurs |
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| 144-205 million years ago |
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| 65 million years ago- Extinction of all dinosaurs except birds |
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