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| physical phenomena > event > era > geological era > cenozoic era > tertiary period > miocene epoch | 
| miocene epoch comparison table | |||
| Subject | has duration | is a kind of | has start time | 
|---|---|---|---|
| tertiary period | 63 million years | cenozoic era | 63 million years ago | 
| miocene epoch | 12 million years | tertiary period | 25 million years ago | 
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