NOUN | time | Phanerozoic aeon, Phanerozoic, Phanerozoic eon | the period from about 5,400 million years ago until the present |
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Meaning | The period from about 5,400 million years ago until the present. | |
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Synonyms | Phanerozoic, Phanerozoic eon | |
Instance of | eon, aeon | The longest division of geological time |
Parts | Cenozoic, Cenozoic era, Age of Mammals | approximately the last 63 million years |
Spanish | Fanerozoico |
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