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
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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 North America						Permian-Jurassic of New Zealand		Carboniferous Subepochs	Permian of the Russian Platform		Cretaceous-Cenozoic of New Zealand
Quaternary	Holocene	Meghalayan															Wanganui	Haweran	0
		Northgrippian																	0.0042
		Greenlandian																	0.0082
	Pleistocene	Late Pleistocene																	0.0117
		Chibanian																	0.129
		Chibanian																Castlecliffian	0.34
		Calabrian																Castlecliffian	0.774
		Calabrian																Nukumaruan	1.63
		Gelasian																Nukumaruan	1.8
		Gelasian																Mangapanian	2.4
Neogene	Pliocene	Piacenzian	Tertiary †															Mangapanian	2.58
		Piacenzian																Waipipian	3
		Zanclean																Waipipian	3.6
		Zanclean																Opoitian	3.7
	Miocene	Messinian															Taranaki	Kapitean	5.333
		Messinian																Tongaporutuan	7.2
		Tortonian																Tongaporutuan	7.246
		Tortonian															Southland	Waiauan	11.04
		Serravallian																Waiauan	11.63
		Serravallian																Lillburnian	13.05
		Langhian																Lillburnian	13.82
																		Clifdenian	15.1
																	Pareora	Altonian	15.9
		Burdigalian																Altonian	15.98
		Burdigalian																Otaian	18.7
		Aquitanian																Otaian	20.44
		Aquitanian															Landon	Waitakian	21.7
Paleogene	Oligocene	Chattian																Waitakian	23.03
																		Duntroonian	25.2
																		Whaingaroan	27.3
		Rupelian																	27.82
	Eocene	Priabonian																	33.9
																	Arnold	Runangan	34.6
																		Kaiatan	36.7
		Bartonian																Kaiatan	37.71
		Bartonian																Bortonian	39.1
		Lutetian																Bortonian	41.2
																	Dannevirke	Porangan	42.6
																		Heretaungan	45.7
		Ypresian																Heretaungan	47.8
																		Mangaorapan	48.9
																		Waipawan	52
	Paleocene	Thanetian																Teurian	56
		Selandian																	59.2
		Danian																	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		Kathwai	251.5 *
Permian	Lopingian	Changhsingian					Kathwai	251.902
								252.4 *
							Chhidru	252.9 *
					Waiitian			253.2
		Wuchiapingian			Waiitian			Longtanian †	254.14
					Puruhauan				254.2
							Kalabagh		255 *
							Wargal		256 *
									Tatarian	Vyatkian	256.8 *
	Guadalupian	Capitanian			Aparima			Flettian		Severodvinian	259.51
		Wordian								Urzhumian	264.28
											265.3 *
								Barettian			266
							Amb				266.1 *
		Roadian	Kazanian				Amb		Povolzhian	266.9
		Roadian	Kazanian				Sokian			270.7 *
	Cisuralian	Kungurian	Kungurian				Irenian/Ufimian			273.01
							Irenian/Ufimian	Mangapirian		276
							Filipovian			276.5 *
							Saraninian			280.1 *
		Artinskian	Artinskian				Sarginian			283.5
							Sarginian	Telfordian		285
							Irginian			285.9 *
							Burtsevian			287.8 *
							Burtsevian			288.5
		Sakmarian	Sakmarian				Sterlitamakian			290.1
		Sakmarian	Sakmarian				Tastubian			291.7 *
		Asselian	Asselian				Shikhanian			293.52
							Uskalykian			294.8
							Surenian			297.5
Carboniferous	Pennsylvanian	Gzhelian	Late Pennsylvanian								Mapingian †	298.9
		Kasimovian									Mapingian †	303.7
		Kasimovian										305.9
		Moscovian	Middle Pennsylvanian									307
		Bashkirian	Early Pennsylvanian			315.2
	Mississippian	Serpukhovian	Late Mississippian			323.2
		Visean	Middle Mississippian			330.9
		Tournaisian	Early Mississippian			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				Cincinnatian						Gamachian	443.8
		Katian										Gamachian	445.2
												Richmondian	446 *
												Maysvillian	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
												Edenian		450.4 *
						Mohawkian						Chatfieldian		451.1 *
		Sandbian										Chatfieldian		453
												Turinian		453.7 *
						Whiterockian							Canadian †	Chazyan †/Marmor	457 *
	Middle Ordovician	Darriwilian													458.4
		Dapingian													467.3
		Dapingian										Rangerian			469.1 *
	Early Ordovician	Floian				Ibexian						Blackhillsian		Jeffersonian †	Cassinian †	470
		Floian										Tulean				473.9 *
		Tremadocian										Tulean				477.7
												Stairsian				480.3 *
												Skullrockian			Demingian †	482 *
Cambrian	Furongian	Stage 10										Skullrockian				Late Cambrian	485.4
		Stage 10															487.5
		Jiangshanian															489.5
		Paibian		494
	Miaolingian	Guzhangian		Series 3 †												Middle Cambrian	497
		Drumian															500.5
		Wuliuan															Stage 5 †	504.5
	Series 2	Stage 4															Early Cambrian	509
	Series 2	Stage 3																514
	Terreneuvian	Stage 2							521
	Terreneuvian	Fortunian							529
																			538.8