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
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 126764 collections

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International Chronostratigraphic Timescale					Precambrian of Russia	Silurian Ages of Europe	Permian-Jurassic of New Zealand
Phanerozoic	Mesozoic	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
	Paleozoic	Permian	Lopingian	Changhsingian				Makarewan	251.902
				Changhsingian				Waiitian	253.2
				Wuchiapingian				Waiitian	254.14
				Wuchiapingian				Puruhauan	254.2
			Guadalupian	Capitanian			Aparima	Flettian	259.51
				Wordian				Flettian	264.28
				Wordian				Barettian	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					358.9
			Late Devonian	Frasnian					372.2
			Middle Devonian	Givetian					382.7
			Middle Devonian	Eifelian					387.7
			Early Devonian	Emsian					393.3
				Pragian					407.6
				Lochkovian					410.8
		Silurian	Pridoli						419.2
			Ludlow	Ludfordian					423
			Ludlow	Gorstian					425.6
			Wenlock	Homerian		Gleedonian			427.4
				Homerian		Whitwellian			429.7 *
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		485.4
			Jiangshanian		489.5
			Paibian		494
		Miaolingian	Guzhangian		497
			Drumian		500.5
			Wuliuan		504.5
		Series 2	Stage 4		509
		Series 2	Stage 3		514
		Terreneuvian	Stage 2		521
		Terreneuvian	Fortunian		529
Proterozoic	Neoproterozoic	Ediacaran				Vendian			538.8
		Cryogenian							635
		Tonian							720
		Tonian				Karatau			800
	Mesoproterozoic	Stenian				Karatau			1000
		Stenian				Yurmatian			1100
		Ectasian				Yurmatian			1200
		Ectasian				Burzyan			1375
									1400