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, 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
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

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

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International Chronostratigraphic Timescale			Carbo-Permian of the Russian Platform	Cretaceous-Cenozoic of New Zealand		Devonian Subages	Carboniferous of Western Europe
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
		Asselian				Kuzel	297.7
Carboniferous	Pennsylvanian	Gzhelian				Kuzel	298.9
						Stephanian	Stephanian C	300.3 *
							Stephanian B	300.9 *
							Stephanian A	301.4 *
		Kasimovian		Dorogomilovian				303.7
				Khamovnikian				304.8
				Khamovnikian			Cantabrian	305 *
				Krevyakinian				305.8 *
		Moscovian		Myachkovian				307
				Myachkovian		Westphalian	Westphalian D	307.4 *
				Podolskian			Westphalian D	308.9 *
				Podolskian			Westphalian C	309.8
				Kashirian				311.4 *
				Vereian				313.8
				Vereian			Westphalian B	314.6
				Melekessian				314.8
		Bashkirian		Melekessian				315.2
				Cheremshanian				316.9 *
				Cheremshanian			Westphalian A	317 *
				Prikamian			Westphalian A	318.6 *
				Prikamian		Namurian	Yeadonian	318.8 *
				Severokeltmian			Yeadonian	319.9 *
				Severokeltmian			Marsdenian	320.2 *
				Krasnopolyanian			Marsdenian	321.2 *
				Krasnopolyanian			Kinderscoutian	321.5 *
				Voznesenian			Kinderscoutian	321.9 *
							Alportian	322 *
							Chokierian	323.1 *
	Mississippian	Serpukhovian		Zapaltjubian	323.2		Chokierian
				Zapaltjubian	Arnsbergian		324 *
				Protvian			324.4 *
				Steshevian			326.8 *
				Steshevian	Pendleian		327.4 *
			Tarusian	329 *	Pendleian
		Visean	Venevian	Warnantian	Brigantian †	330.9
			Mikhailovian			331.9 *
			Aleksinian			333.7 *
			Tulian			335.8 *
			Tulian	Livian	Asbian †	336.3 *
			Bobrikian	Livian	Asbian †	339.9 *
			Bobrikian	Moliniacian	Holkerian †/Arundian/Chadian	340.2 *
			Radaevkian	Moliniacian	Holkerian †/Arundian/Chadian	343.4 *
		Tournaisian	Kosvian	Ivorian		346.7
			Kizelian			350.7 *
			Cherepetian			351.9 *
			Cherepetian	Hastarian		353.7 *
			Karakubian			354.4 *
			Upinian			356.3 *
			Malevkian			357.6 *
			Gumerovian			358 *
Devonian	Late Devonian	Famennian		Late Famennian			358.9
				Middle Famennian			365.3 *
				Early Famennian			368.5 *
		Frasnian		Late Frasnian			372.2
				Middle Frasnian			375.4 *
				Early Frasnian			379.3 *
	Middle Devonian	Givetian		Late Givetian			382.7
				Middle Givetian			383.7 *
				Early Givetian			385.9 *
		Eifelian		Late Eifelian			387.7
		Eifelian		Early Eifelian			390.3 *
	Early Devonian	Emsian		Late Emsian			393.3
		Emsian		Early Emsian			398.3 *
		Pragian		Pragian			407.6
		Lochkovian		Late Lochkovian			410.8
				Middle Lochkovian			412.8 *
				Early Lochkovian			415.6 *
									419.2