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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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			Ordovician of Britain				Cretaceous-Cenozoic of New Zealand		Silurian Ages of Europe	Permian-Jurassic of New Zealand		Ordovician of the Baltic				Permian of China	Cenozoic Subepochs
Quaternary	Holocene	Meghalayan								Wanganui	Haweran										0
		Northgrippian																			0.0042
		Greenlandian																			0.0082
	Pleistocene	Late Pleistocene																		Late Pleistocene	0.0117
		Chibanian																		Middle Pleistocene	0.129
		Chibanian									Castlecliffian									Middle Pleistocene	0.34
		Calabrian									Castlecliffian									Early Pleistocene	0.774
		Calabrian									Nukumaruan										1.63
		Gelasian									Nukumaruan										1.8
		Gelasian									Mangapanian										2.4
Neogene	Pliocene	Piacenzian	Tertiary †								Mangapanian									Late Pliocene	2.58
		Piacenzian									Waipipian									Late Pliocene	3
		Zanclean									Waipipian									Early Pliocene	3.6
		Zanclean									Opoitian									Early Pliocene	3.7
	Miocene	Messinian								Taranaki	Kapitean									Late Miocene	5.333
		Messinian									Tongaporutuan										7.2
		Tortonian									Tongaporutuan										7.246
		Tortonian								Southland	Waiauan										11.04
		Serravallian									Waiauan									Middle Miocene	11.63
		Serravallian									Lillburnian										13.05
		Langhian									Lillburnian										13.82
											Clifdenian										15.1
										Pareora	Altonian										15.9
		Burdigalian									Altonian									Early Miocene	15.98
		Burdigalian									Otaian										18.7
		Aquitanian									Otaian										20.44
		Aquitanian								Landon	Waitakian										21.7
Paleogene	Oligocene	Chattian									Waitakian									Late Oligocene	23.03
											Duntroonian										25.2
											Whaingaroan										27.3
		Rupelian																		Early Oligocene	27.82
	Eocene	Priabonian																		Late Eocene	33.9
										Arnold	Runangan										34.6
											Kaiatan										36.7
		Bartonian									Kaiatan									Middle Eocene	37.71
		Bartonian									Bortonian										39.1
		Lutetian									Bortonian										41.2
										Dannevirke	Porangan										42.6
											Heretaungan										45.7
		Ypresian									Heretaungan									Early Eocene	47.8
											Mangaorapan										48.9
											Waipawan										52
	Paleocene	Thanetian									Teurian									Late Paleocene	56
		Selandian																		Middle Paleocene	59.2
		Danian																		Early Paleocene	61.6
Cretaceous	Late Cretaceous	Maastrichtian								Mata	Haumurian										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										100.5
											Urutawan										103.3
										Taitai	Korangan										108.4
		Aptian									Korangan										113
		Aptian																			117.5
		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	Meishanian	251.902
						Waiitian	Meishanian	253.2
							Baoqingian	253.4 *
		Wuchiapingian					Longtanian †	Laoshanian	254.14
						Puruhauan		Laoshanian	254.2
						Puruhauan		Laibinian	257.7 *
	Guadalupian	Capitanian				Aparima	Flettian	Lengwuan	259.51
		Wordian					Flettian	Kuhfengian	264.28
		Wordian					Barettian		266
		Roadian							266.9
	Cisuralian	Kungurian						Luodianian	273.01
		Kungurian					Mangapirian		276
		Artinskian					Mangapirian		283.5
							Telfordian		285
			Longlinian				Telfordian	285.4 *
								288.5
		Sakmarian						290.1
		Asselian	Zisongian					293.52
Carboniferous	Pennsylvanian	Gzhelian	Zisongian					Mapingian †	298.9
		Gzhelian							300.1
		Kasimovian							303.7
		Kasimovian							305.9
		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		Gleedonian					427.4
		Homerian		Whitwellian					429.7 *
		Sheinwoodian							430.5
	Llandovery	Telychian							433.4
		Aeronian							438.5
		Rhuddanian							440.8
Ordovician	Late Ordovician	Hirnantian							Ashgill	Hirnantian	Harju	Porkuni	Hirnantian	Xiaoxita †/Shikou	Wufeng †	443.8
		Katian								Rawtheyan		Pirgu	Chientangkiangian			445.2
										Cautleyan						448.9 *
										Pusgillian						449.3 *
										Pusgillian			Neichianshanian/Hanjiang			449.5
									Caradoc	Streffordian		Onnian †				Vormsi	449.6 *
																Nabala	Johvi †	450 *
											Viru					Rakvere		450.6 *
										Cheneyan						Rakvere		451.5 *
										Cheneyan						Oandu		452 *
										Burrellian						Oandu		452.7 *
		Sandbian														Keila	Idavere †	453
												Actonian †				Keila		453.2 *
												Actonian †				Haljala		453.9
												Marshbrookian †						Woolstonian †	454.2 *
												Longvillian †							455.2 *
																Kukruse			456.4 *
										Aurelucian									456.8 *
												Soudleyan †/Harnagian/Costonian							457.4 *
												Soudleyan †/Harnagian/Costonian				Uhaku	Aluoja †		457.5 *
	Middle Ordovician	Darriwilian							Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn			Darriwilian	Guniu †/Hulo		Uhaku			458.4
																Lasnamagi			458.9 *
																Aseri			460.4 *
										Abereiddian/Early Llanvirn						Aseri			461.3 *
											Oeland					Kunda			462.9 *
																	Valaste †/Hunderum		464.3 *
														Hunjiang †	Dawan †/Daobaowan/Ningkuo				466.3 *
					Volkhov											Langevoja †/Vaana/Saka			467.1 *
		Dapingian											Dapingian						467.3
									Arenig	Fennian									468.4 *
					Billingen														469.3 *
	Early Ordovician	Floian											Yiyangian						470
																Latorp †			470.1 *
										Whitlandian									471.1 *
					Hunneberg					Whitlandian									473.7 *
										Moridunian									474.3 *
		Tremadocian				Tremadoc	Migneintian		Xinchangian	477.7
							Migneintian			Lianghekou †			477.9 *
							Cressagian						480.8 *
					Varangu								481.3 *
			Pakerort		482.2 *
							485 *
Cambrian	Furongian	Stage 10											485.4
													486.3 *
													486.5
		Jiangshanian											489.5
		Paibian											494
	Miaolingian	Guzhangian											Series 3 †	497
		Drumian												500.5
		Wuliuan												Stage 5 †	504.5
																					509