PBDB Timescale

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
J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
F. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) 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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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 126762 collections

Show more time

Show linear time

International Chronostratigraphic Timescale			Cretaceous-Cenozoic of New Zealand		Cambrian of West Avalonia	European Faunal Zones	Silurian of England		Cretaceous Subepochs
Quaternary	Holocene	Meghalayan	Wanganui	Haweran						0
		Northgrippian								0.0042
		Greenlandian								0.0082
	Pleistocene	Late Pleistocene								0.0117
		Chibanian								0.129
		Chibanian		Castlecliffian						0.34
		Calabrian		Castlecliffian						0.774
		Calabrian		Nukumaruan						1.63
		Gelasian		Nukumaruan		MN 17				1.8
		Gelasian		Mangapanian		MN 17				2.4
Neogene	Pliocene	Piacenzian		Mangapanian		MN 16				2.58
				Waipipian		MN 16				3
						MN 15				3.2
		Zanclean								3.6
				Opoitian						3.7
						MN 14				4.2
						MN 13				4.9
	Miocene	Messinian	Taranaki	Kapitean						5.333
		Messinian		Tongaporutuan						7.2
		Tortonian				MN 12				7.246
						MN 11				7.75
						MN 10				8.7
						MN 9				9.7
			Southland	Waiauan		MN 9				11.04
						MN 7 + 8				11.1
		Serravallian				MN 7 + 8				11.63
						MN 6				12.8 *
				Lillburnian		MN 6				13.05
		Langhian		Lillburnian		MN 5				13.82
				Clifdenian						15.1
			Pareora	Altonian						15.9
		Burdigalian				MN 4				15.98
						MN 3				16.9
				Otaian		MN 3				18.7
						MN 2				20
		Aquitanian								20.44
			Landon	Waitakian						21.7
						MN 1				22.4
Paleogene	Oligocene	Chattian								23.03
				Duntroonian						25.2
				Whaingaroan						27.3
		Rupelian								27.82
	Eocene	Priabonian								33.9
			Arnold	Runangan						34.6
				Kaiatan						36.7
		Bartonian		Kaiatan						37.71
		Bartonian		Bortonian						39.1
		Lutetian		Bortonian						41.2
			Dannevirke	Porangan						42.6
				Heretaungan						45.7
		Ypresian		Heretaungan						47.8
				Mangaorapan						48.9
				Waipawan						52
	Paleocene	Thanetian		Teurian						56
		Selandian								59.2
		Danian								61.6
Cretaceous	Late Cretaceous	Maastrichtian	Mata	Haumurian					Senonian	66
		Campanian		Haumurian						72.1
		Santonian		Piripauan						83.6
		Santonian	Raukumara	Teratan						86.1
		Coniacian								86.3
		Turonian								89.8
				Mangaotanean						90.5
				Arowhanan						93.7
		Cenomanian		Arowhanan	93.9
			Clarence	Ngaterian	95.2
				Motuan	99.5
	Early Cretaceous	Albian		Motuan	Gallic		100.5
				Urutawan			103.3
			Taitai	Korangan			108.4
		Aptian		Korangan			113
		Aptian					117.5
		Barremian					121.4
		Hauterivian			Neocomian		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
		Induan					251.2
		Induan					Kathwai	251.5 *
Permian	Lopingian	Changhsingian					Kathwai	251.902
								252.4 *
							Chhidru	252.9 *
		Wuchiapingian					Chhidru	254.14
							Kalabagh	255 *
							Wargal	256 *
	Guadalupian	Capitanian						259.51
		Wordian				264.28
							265.3 *
						Amb	266.1 *
		Roadian				Amb	266.9
		Roadian					270.7 *
	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					358.9
	Late Devonian	Frasnian					372.2
	Middle Devonian	Givetian					382.7
	Middle Devonian	Eifelian					387.7
	Early Devonian	Emsian					393.3
		Pragian					407.6
		Lochkovian					410.8
Silurian	Pridoli						Red Downtonian/Temeside Shales/Downton Castle	Whitcliffe/Leintwardine	419.2
	Pridoli						Red Downtonian/Temeside Shales/Downton Castle	Bringewood/Elton	421.3
	Ludlow	Ludfordian					Coalbrookdale	Wenlock (England)/Tickwood	423
		Gorstian							425.6
		Gorstian						Buildwas	426.4 *
	Wenlock	Homerian						Buildwas	427.4
		Homerian					Wych	Woolhope	428.4 *
		Sheinwoodian							430.5
	Llandovery	Telychian							433.4
		Telychian							436.3 *
		Aeronian		438.5
		Aeronian		Cowleigh Park			439.3 *
		Rhuddanian		Cowleigh Park			440.8
Ordovician	Late Ordovician	Hirnantian					443.8
		Katian					445.2
		Sandbian	453
	Middle Ordovician	Darriwilian	458.4
	Middle Ordovician	Dapingian	467.3
	Early Ordovician	Floian	470
	Early Ordovician	Tremadocian	477.7
Cambrian	Furongian	Stage 10	Franconian †/Dresbachian/Millardan		485.4
		Stage 10			Sunwaptan		487.5
		Jiangshanian			Sunwaptan		489.5
		Jiangshanian			Steptoean		493 *
		Paibian			Steptoean		494
	Miaolingian	Guzhangian	Marjumian		Albertian †		497
		Guzhangian					Arcadian		498.4
		Drumian							500.5
		Wuliuan	Topazan						504.5
		Wuliuan	Delamaran						506.5
	Series 2	Stage 4	Delamaran		Branchian		Waucoban †		509
		Stage 4	Dyeran						511 *
		Stage 3	Dyeran						514
			Montezuman						514.8 *
			Montezuman		Placentian				517.1
			Begadean						519.9 *
	Terreneuvian	Stage 2							521
	Terreneuvian	Fortunian							529
										538.8