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| physical phenomena > event > era > geological era > cenozoic era > tertiary period > oligocene epoch |
| oligocene epoch comparison table | |||
| Subject | has duration | is a kind of | has start time |
|---|---|---|---|
| tertiary period | 63 million years | cenozoic era | 63 million years ago |
| oligocene epoch | 11 million years | tertiary period | 36 million years ago |
Next tertiary period: paleocene epoch Up: tertiary period Previous tertiary period: miocene epoch