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. 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, 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
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			Silurian Ages of Europe	Permian-Jurassic of New Zealand		Ordovician of the Baltic				Permian of China	Cenozoic Subepochs	Ordovician of China			Cretaceous-Cenozoic of New Zealand
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												Middle Pleistocene					Castlecliffian	0.34
		Calabrian												Early Pleistocene					Castlecliffian	0.774
		Calabrian																	Nukumaruan	1.63
		Gelasian																	Nukumaruan	1.8
		Gelasian																	Mangapanian	2.4
Neogene	Pliocene	Piacenzian	Tertiary †											Late Pliocene					Mangapanian	2.58
		Piacenzian												Late Pliocene					Waipipian	3
		Zanclean												Early Pliocene					Waipipian	3.6
		Zanclean												Early Pliocene					Opoitian	3.7
	Miocene	Messinian												Late Miocene				Taranaki	Kapitean	5.333
		Messinian																	Tongaporutuan	7.2
		Tortonian																	Tongaporutuan	7.246
		Tortonian																Southland	Waiauan	11.04
		Serravallian												Middle Miocene					Waiauan	11.63
		Serravallian																	Lillburnian	13.05
		Langhian																	Lillburnian	13.82
																			Clifdenian	15.1
																		Pareora	Altonian	15.9
		Burdigalian												Early Miocene					Altonian	15.98
		Burdigalian																	Otaian	18.7
		Aquitanian																	Otaian	20.44
		Aquitanian																Landon	Waitakian	21.7
Paleogene	Oligocene	Chattian												Late Oligocene					Waitakian	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												Middle Eocene					Kaiatan	37.71
		Bartonian																	Bortonian	39.1
		Lutetian																	Bortonian	41.2
																		Dannevirke	Porangan	42.6
																			Heretaungan	45.7
		Ypresian												Early Eocene					Heretaungan	47.8
																			Mangaorapan	48.9
																			Waipawan	52
	Paleocene	Thanetian												Late Paleocene					Teurian	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							Harju	Porkuni	Hirnantian	Xiaoxita †/Shikou	Wufeng †	443.8
		Katian								Pirgu	Chientangkiangian		Wufeng †	445.2
										Pirgu	Neichianshanian/Hanjiang			449.5
										Vormsi				449.6 *
										Nabala				Johvi †	450 *
									Viru	Rakvere					450.6 *
										Oandu					452 *
		Sandbian								Keila				Idavere †	453
										Haljala					453.9
										Kukruse					456.4 *
										Uhaku				Aluoja †	457.5 *
	Middle Ordovician	Darriwilian								Uhaku	Darriwilian	Guniu †/Hulo			458.4
										Lasnamagi					458.9 *
										Aseri					460.4 *
									Oeland	Kunda					462.9 *
														Valaste †/Hunderum	464.3 *
												Hunjiang †	Dawan †/Daobaowan/Ningkuo		466.3 *
										Volkhov					Langevoja †/Vaana/Saka	467.1 *
		Dapingian								Volkhov	Dapingian					467.3
		Dapingian								Billingen	Dapingian					469.3 *
	Early Ordovician	Floian									Yiyangian					470
														Latorp †		470.1 *
										Hunneberg						473.7 *
		Tremadocian									Xinchangian					477.7
													Lianghekou †			477.9 *
										Varangu						481.3 *
										Pakerort						482.2 *
Cambrian	Furongian	Stage 10								Pakerort				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