Geological Ages of the Earth

Name of Geological Age						Millions of Years Ago
Phanerozoic	Cenozoic	Quaternary		Holocene		0.011
		Quaternary		Pleistocene		1.8
		Tertiary	Neogene	Pliocene	Piacenzian
				Pliocene	Zanclean	5.3
				Miocene	Messinian
					Tortonian
					Serravalian
					Langhian
					Burdigalian
					Aquitanian	23.8
			Paleogene	Oligocene	Chattian
				Oligocene	Rupelian	33.7
				Eocene	Priabonian
					Bartonian
					Lutetian
					Ypresian	54.8
				Paleocene	Thanetian
					Selandian
					Danian	65 *
	Mesozoic	Cretaceous		Late	Maastrichtian
					Campanian
					Santonian
					Coniacian
					Turonian
					Cenomanian
				Early	Albian
					Aptian
					Barremian
					Hauterivian
					Valanginian
					Berriasian	144
		Jurassic		Late	Tithonian
					Kimmeridgian
					Oxfordian
				Middle	Callovian
					Bathonian
					Bajocian
					Aalenian
				Early	Toarcian
					Pliensbachian
					Sinemurian
					Hettangian	206 *
		Triassic		Late	Rhaetian
					Norian
					Carnian
				Middle	Ladinian
				Middle	Anisian
				Early	Olenekian
				Early	Induan	248 *
	Paleozoic	Permian		Late	Tatarian
					Kazanian
					Kungurian
				Early	Artinskian
					Sakmarian
					Asselian	290
		Carboniferous		Late	Gzelian
					Kasimovian
					Moscovia
					Bashkirian
				Early	Serpukhovian
					Visean
					Tournaisian	354 *
		Devonian		Late	Fammenian
				Late	Frasnian
Middle				Givetian
Middle				Eifelian
Early				Emsian
				Praghian
				Lockhovian	417
Silurian		Late	Pridolian
		Late	Ludlovian
		Early	Wenlockian
		Early	Llandoverian	443 *
Ordovician		Late	Ashgillian
		Late	Caradocian
		Middle	Llandeilian
		Middle	Llanvirnian
		Early	Arenigian
		Early	Tremadocian	490
Cambrian			Sunwaptan	495
			Steptoan	500
			Marjuman	505
			Delamaran	510
			Dyeray	515
			Montezuman	520
				543
Precambrian	Proterozoic	Neoproterozoic		Vendian (Ediacaran)		650
		Neoproterozoic				900
		Mesoproterozoic				1600
		Paleoproterozoic				2500
	Archaean	Late Archaean				2900
		Middle Archaean				3300
		Early Archaean				3800
	Hadean					4500