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. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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

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			Ammonite Chrons of Northwest Europe		Cambrian of Siberia			Cretaceous-Cenozoic of New Zealand		Cretaceous Subepochs	Central Paratethys Stages
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	Tertiary †									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		Pannonian	7.246
		Tortonian									Southland	Waiauan		Pannonian	11.04
		Serravallian												Sarmatian	11.63
														Badenian	12.8 *
												Lillburnian		Badenian	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	Senonian		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	Gallic		100.5
												Urutawan			103.3
											Taitai	Korangan			108.4
		Aptian										Korangan			113
		Aptian													117.5
		Barremian													121.4
		Hauterivian											Neocomian		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				Parkinsoni/Garantiana/Subfurcatum/Sauzei/Laeviuscula/Discites	168.2
		Bajocian					Humphresianum	168.4
		Aalenian				Concavum/Murchisonae/Opalinum		170.9
	Early Jurassic	Toarcian				Levesquei/Variabilis/Bifrons	Thouarsense	174.7
						Levesquei/Variabilis/Bifrons		180.1
						Serpentinum/Falciferum/Tenuicostatum		182
		Pliensbachian				Spinatum/Margaritatus/Davoei/Ibex/Jamesoni		184.2
		Sinemurian				Raricostatum/Oxynotum/Obtusum/Turneri/Semicostatum/Bucklandi		192.9
		Hettangian				Angulata/Liasicus/Planorbis		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						Meishanian	251.902
		Changhsingian						Baoqingian	253.4 *
		Wuchiapingian						Longtanian †	Laoshanian	254.14
		Wuchiapingian						Longtanian †	Laibinian	257.7 *
	Guadalupian	Capitanian							Lengwuan	259.51
		Wordian							Kuhfengian	264.28
		Roadian							Kuhfengian	266.9
	Cisuralian	Kungurian							Luodianian	273.01
		Artinskian							Luodianian	283.5
		Artinskian							Longlinian	285.4 *
		Sakmarian							Longlinian	290.1
		Asselian							Zisongian	293.52
Carboniferous	Pennsylvanian	Gzhelian							Zisongian	298.9
		Gzhelian								300.1
		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	427.4
	Wenlock	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
		Tremadocian	Ungurian							477.7
		Tremadocian	Ungurian							Mansian †	483.55 *
Cambrian	Furongian	Stage 10	Batyrbaian	Tavgian †	Ketyan †/Yurakian					Batyrbaian	485.4
		Jiangshanian	Batyrbaian							Batyrbaian	489.5
			Aksaian							Aksaian	490.7 *
			Sakian							Sakian	492.2 *
		Paibian									494
		Paibian			Ensyan †/Maduan/Nganasanian						494.7 *
	Miaolingian	Guzhangian	Series 3 †	Ayusokkanian							Ayusokkanian	497
		Guzhangian		Mayan/Menevian								499.5
		Drumian									Zhanaarykian	500.5
		Drumian					Tuesaian				503
		Wuliuan		Stage 5 †			Tuesaian	Amgan/Solvan			504.5
		Wuliuan		Stage 5 †							505.3
	Series 2	Stage 4									509
					Toyonian		Lenian †	Toyonian			510 *
					Botomian	Botomian		512.5 *
		Stage 3			Botomian	Botomian		514
		Stage 3			Atdabanian		Atdabanian	515.6 *
	Terreneuvian	Stage 2			Tommotian		Tommotian	521
		Stage 2			Nemakit-Daldynian			525.5
		Fortunian			Nemakit-Daldynian	Manykaian †		529
															538.8