All of geologic time

Name every eon, era, period, epoch, and age of geologic time on Earth.

The date corresponding to a segment of time is when the segment began

Hint: Some names are very creative

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Last updated: January 26, 2024

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First submitted	January 5, 2023
Times taken	152
Average score	25.1%
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Eon	Era	Period	Epoch	Age	mya
Hadean					4567
Archean	Eoarchean				4031
	Paleoarchean				3600
	Mesoarchean				3200
	Neoarchean				2800
Proterozoic	Paleoproterozoic	Siderian			2500
		Rhyacian			2300
		Orosirian			2050
		Statherian			1800
	Mesoproterozoic	Calymmian			1600
		Ectasian			1400
		Stenian			1200
	Neoproterozoic	Tonian			1000
		Cryogenian			720
		Ediacaran			635
Phanerozoic	Paleozoic	Cambrian	Terreneuvian	Fortunian	538.8
			Terreneuvian	Age 2	529
			Epoch 2	Age 3	521
			Epoch 2	Age 4	514
			Miaolingian	Wuliuan	509
				Drumian	504.5
				Guzhangian	500.5
			Furongian	Paibian	497
				Jiangshanian	494
				Age 10	489.5
		Ordovician	Lower	Tremadocian	485.4
			Lower	Floian	477.7
			Middle	Dapingian	470
			Middle	Darriwilian	467.3
			Upper	Sandbian	458.4
				Katian	453
				Hirnantian	445.2
		Silurian	Llandovery	Rhuddanian	443.8
				Aeronian	440.8
				Telychian	438.5
			Wenlock	Sheinwoodian	433.4
			Wenlock	Homerian	430.5
			Ludlow	Gorstian	427.4
			Ludlow	Ludfordian	425.6
			Pridoli		423
		Devonian	Lower	Lochkovian	419.2
				Pragian	410.8
				Emsian	407.6
			Middle	Eifelian	393.3
			Middle	Givetian	387.7
			Upper	Frasnian	382.7
			Upper	Famennian	372.2
		Carboniferous	Mississippian	Tournaisian	358.9
				Visean	346.7
				Serpukhovian	330.9
			Pennsylvanian	Bashkirian	323.2
				Moscovian	315.2
				Kasimovian	307
				Gzhelian	303.7
		Permian	Cisuralian	Asselian	298.9
				Sakmarian	293.52
				Artinskian	290.1
				Kungurian	283.5
			Guadalupian	Roadian	273.01
				Wordian	266.9
				Capitanian	264.28
			Lopingian	Wuchiapingian	259.51
			Lopingian	Changhsingian	254.14
	Mesozoic	Triassic	Early	Induan	251.902
			Early	Olenekian	251.2
			Middle	Anisian	247.2
			Middle	Ladinian	242
			Late	Carnian	237
				Norian	227
				Rhaetian	208.5
		Jurassic	Early	Hettangian	201.3
				Sinemurian	199.3
				Pliensbachian	190.8
				Toarcian	182.7
			Middle	Aalenian	174.1
				Bajocian	170.3
				Bathonian	168.3
				Callovian	166.1
			Late	Oxfordian	163.5
Kimmeridgian				157.3
Tithonian				152.1
Cretaceous		Early	Berriasian	145
			Valanginian	139.8
			Hauterivian	132.6
			Barremian	129.4
			Aptian	121.4
			Albian	113
		Late	Cenomanian	100.5
			Turonian	93.9
			Coniacian	89.8
			Santonian	86.3
			Campanian	83.6
			Maastrichtian	72.1
Cenozoic	Paleogene	Paleocene	Danian	66
			Selandian	61.6
			Thanetian	59.2
		Eocene	Ypresian	56
			Lutetian	47.8
			Bartonian	41.2
			Priabonian	37.71
		Oligocene	Rupelian	33.9
		Oligocene	Chattian	27.82
	Neogene	Miocene	Aquitanian	23.03
			Burdigalian	20.44
			Langhian	15.97
			Serravallian	13.82
			Tortonian	11.63
			Messinian	7.246
		Pliocene	Zanclean	5.333
		Pliocene	Piacenzian	3.6
	Quaternary	Pleistocene	Gelasian	2.58
			Calabrian	1.8
			Chibanian	0.774
			Upper	0.129
		Holocene	Greenlandian	0.0117
			Northgrippian	0.0082
			Meghalayan	0.0042

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