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physical phenomena > event > era > geological era |
geological era comparison table |
Subject | has duration | has start time |
---|---|---|
cenozoic era | 63 million years | 63 million years ago |
mesozoic era | 167 million years | 230 million years ago |
paleozoic era | 370 million years | 600 million years ago |
precambrian era | 2500 million years | 3100 million years ago |
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