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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
P. L. Gibbard, M. J. Head, and M. J. C. Walker. 2010. Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma. Journal of Quaternary Science 25(2):96-102 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
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

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 126973 collections

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International Chronostratigraphic Timescale			Permian of the Salt Range	Cenozoic Subepochs of Southern Europe	European Faunal Units	Cambrian Epochs	Permian of the Pamirs	Cretaceous Subepochs	Cretaceous-Cenozoic of New Zealand
Quaternary	Holocene	Meghalayan							Wanganui	Haweran	0
		Northgrippian									0.0042
		Greenlandian									0.0082
	Pleistocene	Late Pleistocene		Tarantian							0.0117
		Chibanian		Ionian							0.129
		Chibanian		Ionian						Castlecliffian	0.34
		Calabrian								Castlecliffian	0.774
		Calabrian								Nukumaruan	1.63
		Gelasian								Nukumaruan	1.8
		Gelasian								Mangapanian	2.4
Neogene	Pliocene	Piacenzian			Villanyian					Mangapanian	2.58
					Villanyian					Waipipian	3
					Ruscinian						3.1 *
		Zanclean									3.6
		Zanclean								Opoitian	3.7
	Miocene	Messinian			Turolian				Taranaki	Kapitean	5.333
		Messinian								Tongaporutuan	7.2
		Tortonian									7.246
					Vallesian						8.7
					Vallesian				Southland	Waiauan	11.04
		Serravallian			Astaracian					Waiauan	11.63
		Serravallian								Lillburnian	13.05
		Langhian								Lillburnian	13.82
										Clifdenian	15.1
									Pareora	Altonian	15.9
		Burdigalian			Orleanian					Altonian	15.98
					Orleanian					Otaian	18.7
					Agenian						20
		Aquitanian									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						Senonian	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						Gallic		Motuan	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			Dorashamian	251.902
								252.4 *
				Chhidru				252.9 *
		Wuchiapingian		Chhidru			Dzhulfian	254.14
				Kalabagh				255 *
				Wargal				256 *
	Guadalupian	Capitanian					Midian	259.51
		Wordian			264.28
					265.3 *
				Amb	266.1 *
					Murgabian		266.2 *
		Roadian					266.9
		Roadian					270.7 *
	Cisuralian	Kungurian			Kubergandian		273.01
		Kungurian			Bolorian		279.8
		Artinskian			Bolorian		283.5
		Artinskian			Yakhtashian		286
		Sakmarian			Sakmarian		290.1
		Asselian			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					Famennian	358.9
	Late Devonian	Frasnian					Frasnian	372.2
	Middle Devonian	Givetian					Givetian	382.7
	Middle Devonian	Eifelian					Couvinien	387.7
	Early Devonian	Emsian						393.3
		Pragian						407.6
		Pragian					Coblencien	408.2 *
		Lochkovian					Gedinnine	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	477.7
Cambrian	Furongian	Stage 10	Late Cambrian			485.4
		Jiangshanian				489.5
		Paibian				494
	Miaolingian	Guzhangian	Middle Cambrian			497
		Drumian				500.5
		Wuliuan				504.5
	Series 2	Stage 4	Early Cambrian			509
	Series 2	Stage 3				514
	Terreneuvian	Stage 2				521
	Terreneuvian	Fortunian				529
											538.8