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Hadean (4550-3800), Archean (3800-2500), and Proterozoic (2500-570)
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Cambrian (570-505), Ordovician (505-436), Silurian (436-406), Devonian (406-360), Mississipian (360-320), Pennsylvanian (320-286), and Permian (286-245)
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Triassic (245-206), Jurassic (206-144), and Cretaceous (144-66)
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Paleogene: (Paleocene (66.4-57.8), Eocene(57.8-36.6), and Oligocene (36.6-23.7)
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Neogene: Miocene (23.7-5.3) and Pilocene (5.3-1.6)
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Quaternary: Pleistocene (1.6-0.01) and Holocene (0.01-present)