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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
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
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.

This timescale is used in the definition of 126151 collections

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International Chronostratigraphic Timescale			Devonian of Eastern North America		Cretaceous-Cenozoic of New Zealand		Devonian of Czechoslovakia	Central Paratethys Stages	Cambrian of Kazakhstan	Permian-Jurassic of New Zealand
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						1.8
		Gelasian				Mangapanian						2.4
Neogene	Pliocene	Piacenzian				Mangapanian						2.58
		Piacenzian				Waipipian						3
		Zanclean				Waipipian						3.6
		Zanclean				Opoitian						3.7
	Miocene	Messinian			Taranaki	Kapitean						5.333
		Messinian				Tongaporutuan						7.2
		Tortonian				Tongaporutuan		Pannonian				7.246
		Tortonian			Southland	Waiauan		Pannonian				11.04
		Serravallian						Sarmatian				11.63
								Badenian				12.8 *
						Lillburnian		Badenian				13.05
		Langhian				Lillburnian						13.82
						Clifdenian						15.1
					Pareora	Altonian						15.9
		Burdigalian				Altonian						15.98
		Burdigalian				Otaian						18.7
		Aquitanian				Otaian						20.44
		Aquitanian			Landon	Waitakian						21.7
Paleogene	Oligocene	Chattian				Waitakian						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						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						100.5
						Urutawan						103.3
					Taitai	Korangan						108.4
		Aptian				Korangan						113
		Aptian										117.5
		Barremian										121.4
		Hauterivian										125.77
		Valanginian	132.6
		Berriasian	139.8
Jurassic	Late Jurassic	Tithonian		Oteke	Puaroan		145
		Kimmeridgian		Oteke	Puaroan		149.2
				Kawhia	Ohauan		150
					Heterian		154.5
		Oxfordian					154.8
	Middle Jurassic	Callovian					161.5
		Callovian			Temaikan		164.3
		Bathonian					165.3
		Bajocian					168.2
		Aalenian					170.9
	Early Jurassic	Toarcian					174.7
		Toarcian		Herangi	Ururoan		176
		Pliensbachian			Ururoan		184.2
		Pliensbachian			Aratauran		188.9
		Sinemurian					192.9
		Hettangian					199.5
Triassic	Late Triassic	Rhaetian		Balfour	Otapirian		201.4
		Norian			Warepan		208.5
					Otamitan		217
					Oretian		221
		Carnian			Oretian		227
		Carnian		Gore	Kaihikuan		227.5
	Middle Triassic	Ladinian			Kaihikuan		237
		Ladinian			Etalian		238
		Anisian			Etalian		242
		Anisian			Malakovian		246
	Early Triassic	Olenekian			Malakovian		247.2
		Olenekian			Nelsonian		249
		Induan			Nelsonian		251.2
		Induan		DUrville	Makarewan		251.5
Permian	Lopingian	Changhsingian			Makarewan		Buntsandstein	251.902
		Changhsingian			Waiitian			253.2
		Wuchiapingian			Waiitian			254.14
		Wuchiapingian			Puruhauan			254.2
	Guadalupian	Capitanian		Aparima	Flettian		Ohre/Aller	259.51
		Wordian			Flettian		Leine	264.28
		Wordian			Barettian		Leine	266
		Roadian						266.9
	Cisuralian	Kungurian						273.01
		Kungurian			Mangapirian			276
		Artinskian			Mangapirian			283.5
					Telfordian			285
								288.5
		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						Conewangan/Conneautan/Canadaway	358.9
	Late Devonian	Frasnian						West Fallsian/Sonyean	372.2
	Middle Devonian	Givetian						Geneseean/Taghanican/Tioughniogan	Cazenovian	Srbsko	382.7
	Middle Devonian	Eifelian						Southwoodian	Cazenovian	Chotec	387.7
	Early Devonian	Emsian						Sawkillian/Deer Parkian	Helderbergian	Daleje/Zlichovian	393.3
		Pragian								Pragian	407.6
		Lochkovian								Lochkovian	410.8
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	443.8
		Katian	445.2
		Sandbian	453
	Middle Ordovician	Darriwilian	458.4
	Middle Ordovician	Dapingian	467.3
	Early Ordovician	Floian	470
	Early Ordovician	Tremadocian	Ungurian							477.7
Cambrian	Furongian	Stage 10	Batyrbaian							485.4
		Jiangshanian	Batyrbaian							489.5
			Aksaian							490.7 *
			Sakian							492.2 *
		Paibian	Sakian							494
	Miaolingian	Guzhangian	Ayusokkanian							497
			Ayusokkanian							Arcadian	498.4
											499.5
		Drumian	Zhanaarykian								500.5
		Drumian	Tuesaian								503
		Wuliuan	Tuesaian								504.5
		Wuliuan									505.3
	Series 2	Stage 4								Branchian	509
			Toyonian								510 *
			Botomian								512.5 *
		Stage 3	Botomian								514
			Atdabanian								515.6 *
			Atdabanian							Placentian	517.1
	Terreneuvian	Stage 2	Tommotian								521
		Stage 2									525.5
		Fortunian									529
												538.8