PBDB Interval

International Chronostratigraphic Timescale

The interval definitions in this timescale are derived from the following sources:

K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view

There are 59 timescales which overlap this one. show

Interval boundaries marked with * have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 126689 collections

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International Chronostratigraphic Timescale					Devonian of Germany	Central Paratethys Stages	Precambrian of Russia	Devonian Subages	Ordovician of Australia	Ordovician of Ibero-Bohemia			Obsolete Names for ICS Units
Phanerozoic	Cenozoic	Neogene	Pliocene	Piacenzian									Tertiary †		2.58
			Pliocene	Zanclean											3.6
			Miocene	Messinian											5.333
				Tortonian		Pannonian									7.246
				Serravallian		Sarmatian									11.63
				Serravallian		Badenian									12.8 *
				Langhian											13.82
				Burdigalian											15.98
				Aquitanian											20.44
		Paleogene	Oligocene	Chattian											23.03
			Oligocene	Rupelian											27.82
			Eocene	Priabonian											33.9
				Bartonian											37.71
				Lutetian											41.2
				Ypresian											47.8
			Paleocene	Thanetian											56
				Selandian											59.2
				Danian											61.6
	Mesozoic	Cretaceous	Late Cretaceous	Maastrichtian											66
				Campanian											72.1
				Santonian											83.6
				Coniacian											86.3
				Turonian											89.8
				Cenomanian											93.9
			Early Cretaceous	Albian											100.5
				Aptian											113
				Barremian											121.4
				Hauterivian											125.77
				Valanginian											132.6
				Berriasian											139.8
		Jurassic	Late Jurassic	Tithonian											145
				Kimmeridgian											149.2
				Oxfordian											154.8
			Middle Jurassic	Callovian											161.5
				Bathonian											165.3
				Bajocian											168.2
				Aalenian											170.9
			Early Jurassic	Toarcian											174.7
				Pliensbachian											184.2
				Sinemurian											192.9
				Hettangian											199.5
		Triassic	Late Triassic	Rhaetian											201.4
				Norian											208.5
				Carnian											227
			Middle Triassic	Ladinian											237
			Middle Triassic	Anisian											242
			Early Triassic	Olenekian											247.2
			Early Triassic	Induan											251.2
	Paleozoic	Permian	Lopingian	Changhsingian											251.902
			Lopingian	Wuchiapingian										Longtanian †	254.14
			Guadalupian	Capitanian											259.51
				Wordian											264.28
				Roadian											266.9
			Cisuralian	Kungurian											273.01
				Artinskian											283.5
				Sakmarian											290.1
				Asselian											293.52
		Carboniferous	Pennsylvanian	Gzhelian											298.9
				Kasimovian											303.7
				Moscovian											307
				Bashkirian											315.2
			Mississippian	Serpukhovian											323.2
				Visean											330.9
				Tournaisian											346.7
Devonian		Late Devonian	Famennian	Wocklum/Dasberg/Hemberg/Nehden	Late Famennian		358.9
					Middle Famennian		365.3 *
					Early Famennian		368.5 *
			Frasnian	Adorf	Late Frasnian		372.2
					Middle Frasnian		375.4 *
					Early Frasnian		379.3 *
		Middle Devonian	Givetian	Givetian	Late Givetian	382.7
					Middle Givetian	383.7 *
					Early Givetian	385.9 *
			Eifelian	Eifelian	Late Eifelian	387.7
			Eifelian	Eifelian	Early Eifelian	390.3 *
		Early Devonian	Emsian	Emsian	Late Emsian	393.3
			Emsian	Emsian	Early Emsian	398.3 *
			Pragian	Siegen	Pragian	407.6
			Lochkovian	Gedinnine	Late Lochkovian	410.8
					Middle Lochkovian	412.8 *
					Early Lochkovian	415.6 *
Silurian		Pridoli				419.2
		Ludlow	Ludfordian			423
		Ludlow	Gorstian			425.6
		Wenlock	Homerian			427.4
		Wenlock	Sheinwoodian			430.5
		Llandovery	Telychian			433.4
			Aeronian			438.5
			Rhuddanian			440.8
Ordovician		Late Ordovician	Hirnantian			Bolindian	Kosovian	443.8
			Katian			Bolindian	Kralodvorian	Bohdalec †	445.2
						Eastonian	Kralodvorian		449 *
						Eastonian	Berounian		449.7 *
						Gisbornian			452 *
			Sandbian						453
									Zahorany †/Vinice	Letna †	456.2 *
								Liben †			458 *
		Middle Ordovician	Darriwilian			Darriwilian					458.4
							Dobrotivian				458.5 *
							Oretanian				459.7 *
								Sarka †			461.7 *
			Dapingian			Yapeenian		Klabava †			467.3
						Yapeenian	Arenigian				468
						Castlemainian					468.5 *
		Early Ordovician	Floian			Chewtonian					470
						Bendigonian					471.8 *
						Lancefieldian					473.5 *
			Tremadocian			Lancefieldian	Tremadocian				477.7
			Tremadocian			Warendian	Tremadocian				482.8 *
Cambrian		Furongian	Stage 10								485.4
			Jiangshanian								489.5
			Paibian								494
	Miaolingian	Guzhangian	Series 3 †								497
		Drumian									500.5
		Wuliuan									Stage 5 †	504.5
	Series 2	Stage 4										509
	Series 2	Stage 3										514
	Terreneuvian	Stage 2										521
	Terreneuvian	Fortunian										529
Proterozoic	Neoproterozoic	Ediacaran											Vendian	538.8
		Cryogenian												635
		Tonian												720
		Tonian											Karatau	800
	Mesoproterozoic	Stenian											Karatau	1000
		Stenian											Yurmatian	1100
		Ectasian											Yurmatian	1200
		Ectasian											Burzyan	1375
															1400