Geologic Eons, Eras and Periods

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Last updated: June 6, 2016

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First submitted	June 6, 2016
Times taken	214

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Eon	Era	Period	Extent, Million Years ago
Phanerozoic	Cenozoic	Quaternary	2.588–0
		Neogene	23.03–2.588
		Paleogene	66.0–23.03
	Mesozoic	Cretaceous	145.5–66.0
		Jurassic	201.3–145.0
		Triassic	252.17–201.3
	Paleozoic	Permian	298.9–252.17
		Carboniferous	358.9–298.9
		Devonian	419.2–358.9
		Silurian	443.4–419.2
		Ordovician	485.4–443.4
		Cambrian	541.0–485.4
Proterozoic	Neoproterozoic	Ediacaran	635.0–541.0
		Cryogenian	850–635
		Tonian	1000–850
	Mesoproterozoic	Stenian	1200–1000
		Ectasian	1400–1200
		Calymmian	1600–1400
	Paleoproterozoic	Statherian	1800–1600
		Orosirian	2050–1800
		Rhyacian	2300–2050
		Siderian	2500–2300
Archean	Neoarchean		2800-2500
	Mesoarchean		3200-2800
	Paleoarchean		3600-3200
	Eoarchean		4000-3600
Hadean			>4000