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
A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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 France	Permo-Triassic Subages of Eastern Europe	Permian-Jurassic of New Zealand		Neogene Mammal Ages of China	Permian of the Salt Range	Permian of Western Europe	Cretaceous Subepochs	Ordovician of Britain
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														7.246
		Tortonian								Tunggurian						11.1
		Serravallian								Tunggurian						11.63
		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											Senonian			66
		Campanian														72.1
		Santonian														83.6
		Coniacian														86.3
		Turonian														89.8
		Cenomanian														93.9
	Early Cretaceous	Albian											Gallic			100.5
		Aptian														113
		Barremian														121.4
		Hauterivian											Neocomian			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		251.2					Nelsonian
		Induan		DUrville	Makarewan	Kathwai		251.5 *
Permian	Lopingian	Changhsingian				Kathwai		251.902
								252.4 *
						Chhidru		252.9 *
					Waiitian			253.2
		Wuchiapingian			Waiitian		Longtanian †	Late Vyatkian/Early Vyatkian	Zechstein		254.14
					Puruhauan						254.2
						Kalabagh					255 *
						Wargal					256 *
	Guadalupian	Capitanian			Late Severodvinian/Early Severodvinian		Aparima	Flettian	Rotliegendes		259.51
		Wordian			Late Urzhumian/Early Urzhumian						264.28
											265.3 *
								Barettian			266
						Amb					266.1 *
		Roadian			Late Kazanian/Early Kazanian	Amb				266.9
		Roadian			Late Kazanian/Early Kazanian					270.7 *
	Cisuralian	Kungurian								273.01
		Kungurian						Mangapirian		276
		Artinskian						Mangapirian	Autunian	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							Famennian	358.9
	Late Devonian	Frasnian							Frasnian	372.2
	Middle Devonian	Givetian							Givetian	382.7
	Middle Devonian	Eifelian							Couvinien	387.7
	Early Devonian	Emsian								393.3
		Pragian								407.6
		Pragian							Coblencien	408.2 *
		Lochkovian							Gedinnine	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								Ashgill	Hirnantian	443.8
		Katian									Rawtheyan	445.2
											Cautleyan	448.9 *
											Pusgillian	449.3 *
										Caradoc	Streffordian	Onnian †	449.6 *
											Cheneyan		451.5 *
											Burrellian		452.7 *
		Sandbian											453
												Actonian †	453.2 *
												Marshbrookian †	Woolstonian †	454.2 *
												Longvillian †		455.2 *
											Aurelucian	Longvillian †		456.8 *
											Aurelucian	Soudleyan †/Harnagian/Costonian		457.4 *
	Middle Ordovician	Darriwilian								Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn			458.4
		Darriwilian									Abereiddian/Early Llanvirn			461.3 *
		Dapingian									Abereiddian/Early Llanvirn			467.3
		Dapingian								Arenig	Fennian			468.4 *
	Early Ordovician	Floian									Fennian			470
											Whitlandian			471.1 *
											Moridunian			474.3 *
		Tremadocian								Tremadoc	Migneintian			477.7
										Tremadoc	Cressagian			480.8 *
														485 *
Cambrian	Furongian	Stage 10												485.4
		Jiangshanian												489.5
		Paibian												494
	Miaolingian	Guzhangian												Series 3 †	497
		Drumian		500.5
		Wuliuan		Stage 5 †											504.5
																509