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physical phenomena > event > era > geological era > cenozoic era > tertiary period > eocene epoch
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eocene epoch comparison table
Subject has duration is a kind of has start time
tertiary period63 million yearscenozoic era63 million years ago
eocene epoch22 million yearstertiary period58 million years ago

Next tertiary periodmiocene epoch    Uptertiary period    Previous tertiary periodpliocene epoch