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
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			Permian of North America		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			Capitanian		Late Severodvinian/Early Severodvinian	Aparima	Flettian	Rotliegendes	259.51
		Wordian			Wordian		Late Urzhumian/Early Urzhumian				264.28
											265.3 *
									Barettian		266
						Amb					266.1 *
		Roadian			Roadian	Amb	Late Kazanian/Early Kazanian				266.9
		Roadian			Roadian		Late Kazanian/Early Kazanian				270.7 *
	Cisuralian	Kungurian			Leonardian		Cathedralian					273.01
							Cathedralian		Mangapirian			276
							Hessian					281.9 *
		Artinskian								Autunian		283.5
									Telfordian			285
					Wolfcampian		Lenoxian		Telfordian			286.1 *
												288.5
		Sakmarian	290.1
		Asselian	Nealian				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