PBDB Timescale

Obsolete Names for ICS Units

The interval definitions in this timescale are derived from the following sources:

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
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
A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 view
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view

There are 55 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 92 collections

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International Chronostratigraphic Timescale			Obsolete Names for ICS Units			Permian of the Pamirs	Permo-Triassic Subages of Eastern Europe	Ordovician of China			Carboniferous of China	Silurian of England	Permian of Western Europe	Permian-Jurassic of New Zealand		Central Paratethys Stages	Devonian of Eastern North America		Cambrian of North America
Neogene	Pliocene	Piacenzian	Tertiary †																	2.58
	Pliocene	Zanclean																		3.6
	Miocene	Messinian																		5.333
		Tortonian														Pannonian				7.246
		Serravallian														Sarmatian				11.63
		Serravallian														Badenian				12.8 *
		Langhian																		13.82
		Burdigalian																		15.98
		Aquitanian																		20.44
Paleogene	Oligocene	Chattian																		23.03
	Oligocene	Rupelian																		27.82
	Eocene	Priabonian																		33.9
		Bartonian																		37.71
		Lutetian																		41.2
		Ypresian																		47.8
	Paleocene	Thanetian																		56
		Selandian																		59.2
		Danian																		61.6
Cretaceous	Late Cretaceous	Maastrichtian																		66
		Campanian																		72.1
		Santonian																		83.6
		Coniacian																		86.3
		Turonian																		89.8
		Cenomanian																		93.9
	Early Cretaceous	Albian																		100.5
		Aptian																		113
		Barremian																		121.4
		Hauterivian																		125.77
		Valanginian																		132.6
		Berriasian																		139.8
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					Vokhmian								Malakovian					247.2
		Olenekian													Nelsonian					249
		Induan													Nelsonian					251.2
		Induan												DUrville	Makarewan					251.5
Permian	Lopingian	Changhsingian				Dorashamian									Makarewan					251.902
		Changhsingian				Dorashamian									Waiitian					253.2
		Wuchiapingian		Longtanian †		Dzhulfian	Late Vyatkian/Early Vyatkian						Zechstein		Waiitian					254.14
		Wuchiapingian		Longtanian †		Dzhulfian	Late Vyatkian/Early Vyatkian						Zechstein		Puruhauan					254.2
	Guadalupian	Capitanian			Midian	Late Severodvinian/Early Severodvinian	Rotliegendes	Aparima	Flettian	259.51
		Wordian				Late Urzhumian/Early Urzhumian			Flettian	264.28
									Barettian	266
					Murgabian					266.2 *
		Roadian			Murgabian	Late Kazanian/Early Kazanian				266.9
	Cisuralian	Kungurian			Kubergandian					273.01
					Kubergandian				Mangapirian	276
					Bolorian					279.8
		Artinskian					Autunian			283.5
									Telfordian	285
					Yakhtashian				Telfordian	286
					Yakhtashian					288.5
		Sakmarian			Sakmarian					290.1
		Asselian			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	358.9
	Late Devonian	Frasnian								West Fallsian/Sonyean	372.2
	Middle Devonian	Givetian								Geneseean/Taghanican/Tioughniogan	Cazenovian	382.7
	Middle Devonian	Eifelian								Southwoodian	Cazenovian	387.7
	Early Devonian	Emsian								Sawkillian/Deer Parkian	Helderbergian	393.3
		Pragian										407.6
		Lochkovian										410.8
Silurian	Pridoli										Red Downtonian/Temeside Shales/Downton Castle	Whitcliffe/Leintwardine	419.2
	Pridoli										Red Downtonian/Temeside Shales/Downton Castle	Bringewood/Elton	421.3
	Ludlow	Ludfordian									Coalbrookdale	Wenlock (England)/Tickwood	423
		Gorstian											425.6
		Gorstian										Buildwas	426.4 *
	Wenlock	Homerian										Buildwas	427.4
		Homerian									Wych	Woolhope	428.4 *
		Sheinwoodian											430.5
	Llandovery	Telychian											433.4
		Telychian											436.3 *
		Aeronian											438.5
		Aeronian									Cowleigh Park		439.3 *
		Rhuddanian									Cowleigh Park		440.8
Ordovician	Late Ordovician	Hirnantian									Hirnantian		Xiaoxita †/Shikou	Wufeng †		443.8
		Katian									Chientangkiangian			Wufeng †		445.2
		Katian									Neichianshanian/Hanjiang					449.5
		Sandbian									Neichianshanian/Hanjiang					453
	Middle Ordovician	Darriwilian									Darriwilian		Guniu †/Hulo			458.4
		Darriwilian									Darriwilian		Hunjiang †	Dawan †/Daobaowan/Ningkuo		466.3 *
		Dapingian									Dapingian					467.3
	Early Ordovician	Floian									Yiyangian					470
		Tremadocian									Xinchangian					477.7
		Tremadocian									Xinchangian			Lianghekou †		477.9 *
Cambrian	Furongian	Stage 10														Franconian †/Dresbachian/Millardan	485.4
		Stage 10															Sunwaptan	487.5
		Jiangshanian															Sunwaptan	489.5
		Jiangshanian															Steptoean	493 *
		Paibian															Steptoean	494
	Miaolingian	Guzhangian														Series 3 †	Marjumian	Albertian †	497
		Drumian															Marjumian		500.5
		Wuliuan		Stage 5 †													Topazan		504.5
		Wuliuan		Stage 5 †													Delamaran		506.5
	Series 2	Stage 4															Delamaran	Waucoban †	509
		Stage 4															Dyeran		511 *
		Stage 3															Dyeran		514
						Montezuman											514.8 *
						Begadean											519.9 *
	Terreneuvian	Stage 2															521
	Terreneuvian	Fortunian															529
																				538.8