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
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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			Devonian of Germany	Neogene Mammal Ages of China	Ordovician of China			Carboniferous of China		Permian of Western Europe	Permian-Jurassic of New Zealand		Central Paratethys Stages	Devonian of Eastern North America
Quaternary	Pleistocene	Late Pleistocene					Nihewanian												0.0117
		Chibanian																	0.129
		Calabrian																	0.774
		Gelasian																	1.8
Neogene	Pliocene	Piacenzian	Tertiary †				Yushean												2.58
		Zanclean					Yushean												3.6
		Zanclean					Baodean												4.9
	Miocene	Messinian																	5.333
		Tortonian														Pannonian			7.246
		Tortonian					Tunggurian									Pannonian			11.1
		Serravallian														Sarmatian			11.63
		Serravallian														Badenian			12.8 *
		Langhian					Shanwangian												13.82
		Burdigalian					Shanwangian												15.98
		Burdigalian					Xiejiaan												16.9
		Aquitanian					Xiejiaan												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													Malakovian				247.2
		Olenekian		Nelsonian	249
		Induan		Nelsonian	251.2
		Induan		DUrville	Makarewan	251.5
Permian	Lopingian	Changhsingian			Makarewan	251.902
		Changhsingian			Waiitian	253.2
		Wuchiapingian			Waiitian	Longtanian †		Zechstein	254.14
		Wuchiapingian			Puruhauan	Longtanian †		Zechstein	254.2
	Guadalupian	Capitanian			Rotliegendes	Aparima		Flettian	259.51
		Wordian						Flettian	264.28
		Wordian						Barettian	266
		Roadian							266.9
	Cisuralian	Kungurian							273.01
		Kungurian						Mangapirian	276
		Artinskian			Autunian			Mangapirian	283.5
								Telfordian	285
									288.5
		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	Wocklum/Dasberg/Hemberg/Nehden						Conewangan/Conneautan/Canadaway	358.9
	Late Devonian	Frasnian	Adorf						West Fallsian/Sonyean	372.2
	Middle Devonian	Givetian	Givetian						Geneseean/Taghanican/Tioughniogan	Cazenovian	382.7
	Middle Devonian	Eifelian	Eifelian						Southwoodian	Cazenovian	387.7
	Early Devonian	Emsian	Emsian						Sawkillian/Deer Parkian	Helderbergian	393.3
		Pragian	Siegen								407.6
		Lochkovian	Gedinnine								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