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
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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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, 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.

This timescale is used in the definition of 126778 collections

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International Chronostratigraphic Timescale			Devonian of France	Carbo-Permian of the Russian Platform	Cretaceous-Cenozoic of New Zealand		Carboniferous Subepochs	Devonian of Germany
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			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		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
Permian	Lopingian	Changhsingian		Melekhovian	251.902
	Lopingian	Wuchiapingian			254.14
	Guadalupian	Capitanian			259.51
		Wordian			264.28
		Wordian		Noginskian	264.9 *
		Roadian			266.9
	Cisuralian	Kungurian			273.01
		Kungurian		Pavlovoposadian	276.8 *
		Artinskian		Pavlovoposadian	283.5
		Artinskian		Rusavkinian	287.6 *
		Sakmarian			290.1
		Asselian			293.52
Carboniferous	Pennsylvanian	Gzhelian			Late Pennsylvanian		298.9
		Kasimovian		Dorogomilovian			303.7
				Khamovnikian			304.8
				Krevyakinian			305.8 *
		Moscovian		Myachkovian	Middle Pennsylvanian		307
				Podolskian			308.9 *
				Kashirian			311.4 *
				Vereian			313.8
				Melekessian			314.8
		Bashkirian		Melekessian	Early Pennsylvanian		315.2
				Cheremshanian			316.9 *
				Prikamian			318.6 *
				Severokeltmian			319.9 *
				Krasnopolyanian			321.2 *
				Voznesenian			321.9 *
	Mississippian	Serpukhovian		Zapaltjubian	Late Mississippian		323.2
				Protvian			324.4 *
				Steshevian			326.8 *
				Tarusian			329 *
		Visean		Venevian	Middle Mississippian		330.9
				Mikhailovian			331.9 *
				Aleksinian			333.7 *
				Tulian			335.8 *
				Bobrikian			339.9 *
				Radaevkian			343.4 *
		Tournaisian		Kosvian	Early Mississippian		346.7
				Kizelian			350.7 *
				Cherepetian			351.9 *
				Karakubian			354.4 *
				Upinian		356.3 *
				Malevkian		357.6 *
				Gumerovian		358 *
Devonian	Late Devonian	Famennian		Famennian			Wocklum/Dasberg/Hemberg/Nehden	358.9
	Late Devonian	Frasnian		Frasnian			Adorf	372.2
	Middle Devonian	Givetian	Givetian	Givetian			382.7
	Middle Devonian	Eifelian	Couvinien	Eifelian			387.7
	Early Devonian	Emsian		Emsian			393.3
		Pragian		Siegen			407.6
		Pragian	Coblencien	Siegen			408.2 *
		Lochkovian	Gedinnine	Gedinnine			410.8
									419.2