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			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							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							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