English > Age of Mammals: 1 sense > noun 1, time| Meaning | approximately the last 63 million years. |
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| Synonyms | Cenozoic, Cenozoic era |
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| Instance of | era, geological era | A major division of geological time |
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| Part of | Phanerozoic, Phanerozoic eon, Phanerozoic aeon | The period from about 5,400 million years ago until the present |
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| Parts | Quaternary, Quaternary period, Age of Man | last 2 million years |
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| Tertiary, Tertiary period | From 63 million to 2 million years ago |
| Spanish | cenozoico, Cenozoico, era cenozoica, Era Cenozoica, Era Terciaria |
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| Catalan | Cenozoic, era cenozoica |
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