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
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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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	Permian-Jurassic of New Zealand		Cambrian of China		Cambrian of Kazakhstan	Devonian of Czechoslovakia	Paleogene Mammal Ages of Asia		Cambrian Epochs	Ordovician of Ibero-Bohemia
Neogene	Pliocene	Piacenzian	Tertiary †																			2.58
	Pliocene	Zanclean																				3.6
	Miocene	Messinian																				5.333
		Tortonian																				7.246
		Serravallian																				11.63
		Langhian																				13.82
		Burdigalian																				15.98
		Aquitanian																				20.44
Paleogene	Oligocene	Chattian											Tabenbulakian	Hsandagolian								23.03
	Oligocene	Rupelian											Kekeamuan	Hsandagolian								27.82
	Eocene	Priabonian											Houldjinian/Ergilian/Ulangochuian									33.9
		Bartonian											Sharamurunian/Irdinmanhan/Arshantan									37.71
		Lutetian																				41.2
		Ypresian												Bumbanian								47.8
	Paleocene	Thanetian											Gashatan									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		Longtanian †				Waiitian														254.14
		Wuchiapingian		Longtanian †				Puruhauan														254.2
	Guadalupian	Capitanian					Aparima	Flettian														259.51
		Wordian			264.28			Flettian
		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					Mapingian †	298.9
		Kasimovian					Mapingian †	303.7
		Kasimovian						305.9
		Moscovian						307
		Bashkirian						315.2
	Mississippian	Serpukhovian						323.2
		Visean						330.9
		Tournaisian	346.7
Devonian	Late Devonian	Famennian	Wocklum/Dasberg/Hemberg/Nehden					358.9
	Late Devonian	Frasnian	Adorf					372.2
	Middle Devonian	Givetian	Givetian					Srbsko	382.7
	Middle Devonian	Eifelian	Eifelian					Chotec	387.7
	Early Devonian	Emsian	Emsian					Daleje/Zlichovian	393.3
		Pragian	Siegen					Pragian	407.6
		Lochkovian	Gedinnine					Lochkovian	410.8
Silurian	Pridoli								419.2
	Ludlow	Ludfordian							423
	Ludlow	Gorstian							425.6
	Wenlock	Homerian							427.4
	Wenlock	Sheinwoodian							430.5
	Llandovery	Telychian							433.4
		Aeronian							438.5
		Rhuddanian							440.8
Ordovician	Late Ordovician	Hirnantian							Kosovian	Cincinnatian	Gamachian	443.8
		Katian							Kralodvorian		Gamachian	Bohdalec †	445.2
									Kralodvorian		Richmondian		446 *
									Berounian		Richmondian		449.7 *
											Maysvillian		Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
											Edenian			450.4 *
										Mohawkian	Chatfieldian			451.1 *
		Sandbian									Chatfieldian			453
											Turinian			453.7 *
											Turinian			Zahorany †/Vinice	Letna †	456.2 *
										Whiterockian			Canadian †	Zahorany †/Vinice		Chazyan †/Marmor	457 *
												Liben †					458 *
	Middle Ordovician	Darriwilian															458.4
									Dobrotivian								458.5 *
									Oretanian								459.7 *
												Sarka †					461.7 *
		Dapingian										Klabava †					467.3
									Arenigian								468
											Rangerian						469.1 *
	Early Ordovician	Floian								Ibexian	Blackhillsian					Jeffersonian †	Cassinian †	470
		Floian									Tulean							473.9 *
		Tremadocian							Ungurian		Tulean	Tremadocian							477.7
											Stairsian								480.3 *
											Skullrockian						Demingian †		482 *
Cambrian	Furongian	Stage 10							Niuchehean		Skullrockian	Taoyuanian †	Batyrbaian			Late Cambrian				485.4
		Stage 10							Niuchehean											487.5
		Jiangshanian							Jiangshanian											489.5
													Aksaian							490.7 *
													Sakian							492.2 *
		Paibian							Paibian											494
		Paibian		Waergangian †/Youshuanian					Paibian			494.9 *
	Miaolingian	Guzhangian		Series 3 †					Guzhangian			Wangcunian †	Ayusokkanian			Middle Cambrian				497
		Guzhangian							Guzhangian											499.5
		Drumian							Drumian				Zhanaarykian							500.5
		Drumian							Drumian				Tuesaian							503
		Wuliuan							Stage 5 †			Wuliuan/Taijangian	Tuesaian								504.5
		Wuliuan							Stage 5 †			Wuliuan/Taijangian									505.3
	Series 2	Stage 4										Duyunian				Early Cambrian					509
					Toyonian	510 *
					Botomian	512.5 *
		Stage 3			Botomian	Nangaoian						514
		Stage 3			Atdabanian	Nangaoian						515.6 *
	Terreneuvian	Stage 2			Meishucunian	Tommotian						521
		Stage 2					525.5
		Fortunian					529
		Fortunian			Jinnigian		530.7
																						538.8