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
A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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 126844 collections

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International Chronostratigraphic Timescale			Permo-Triassic Subages of Eastern Europe		Carboniferous of China	Cretaceous Subepochs	Devonian of France	Cretaceous-Cenozoic 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	7.246
		Tortonian						Southland	Waiauan	11.04
		Serravallian							Waiauan	11.63
		Serravallian							Lillburnian	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				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		Vokhmian	247.2
	Early Triassic	Induan		Vokhmian	251.2
Permian	Lopingian	Changhsingian			251.902
	Lopingian	Wuchiapingian		Late Vyatkian/Early Vyatkian	254.14
	Guadalupian	Capitanian		Late Severodvinian/Early Severodvinian	259.51
		Wordian		Late Urzhumian/Early Urzhumian	264.28
		Roadian		Late Kazanian/Early Kazanian	266.9
	Cisuralian	Kungurian			273.01
		Artinskian			283.5
		Sakmarian			290.1
		Asselian			293.52
Carboniferous	Pennsylvanian	Gzhelian			298.9
		Gzhelian			Xiaodushanian	300 *
		Kasimovian			Xiaodushanian	303.7
		Kasimovian			Dalaun	305.8 *
		Moscovian				307
		Bashkirian				315.2
					Huashibanian	318.5 *
					Lousuan	321.2 *
	Mississippian	Serpukhovian			Dewunian	323.2
		Serpukhovian			Shangsian	330.8 *
		Visean			Shangsian	330.9
		Visean			Jiusian	335 *
		Tournaisian			Tangbagouan	346.7
Devonian	Late Devonian	Famennian			Conewangan/Conneautan/Canadaway		Famennian	358.9
	Late Devonian	Frasnian			West Fallsian/Sonyean		Frasnian	372.2
	Middle Devonian	Givetian			Geneseean/Taghanican/Tioughniogan		Cazenovian	Givetian		382.7
	Middle Devonian	Eifelian			Southwoodian		Cazenovian	Couvinien		387.7
	Early Devonian	Emsian			Sawkillian/Deer Parkian		Helderbergian			393.3
		Pragian								407.6
		Pragian						Coblencien		408.2 *
		Lochkovian						Gedinnine		410.8
										419.2