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
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			Permian-Jurassic of New Zealand		Cretaceous-Cenozoic of New Zealand		Carboniferous of Western Europe		Devonian of Czechoslovakia
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		251.5
Permian	Lopingian	Changhsingian			Makarewan		251.902
		Changhsingian			Waiitian		253.2
		Wuchiapingian			Waiitian		Longtanian †	254.14
		Wuchiapingian			Puruhauan		Longtanian †	254.2
	Guadalupian	Capitanian			Aparima		Flettian	259.51
		Wordian					Flettian	264.28
		Wordian					Barettian	266
		Roadian						266.9
	Cisuralian	Kungurian						273.01
		Kungurian					Mangapirian	276
		Artinskian					Mangapirian	283.5
							Telfordian	285
								288.5
		Sakmarian						290.1
		Asselian	293.52
		Asselian	Kuzel					297.7
Carboniferous	Pennsylvanian	Gzhelian	Kuzel					298.9
			Stephanian					Stephanian C		300.3 *
								Stephanian B		300.9 *
								Stephanian A		301.4 *
		Kasimovian						Stephanian A		303.7
		Kasimovian						Cantabrian		305 *
		Moscovian						Cantabrian		307
			Westphalian					Westphalian D		307.4 *
								Westphalian C		309.8
								Westphalian B		314.6
		Bashkirian						Westphalian B		315.2
								Westphalian A		317 *
			Namurian					Yeadonian		318.8 *
								Marsdenian	320.2 *
								Kinderscoutian	321.5 *
								Alportian	322 *
								Chokierian	323.1 *
	Mississippian	Serpukhovian						Chokierian	323.2
						Arnsbergian		324 *
						Pendleian		327.4 *
		Visean	Warnantian			Brigantian †		330.9
			Livian			Asbian †		336.3 *
			Moliniacian			Holkerian †/Arundian/Chadian		340.2 *
		Tournaisian	Ivorian					346.7
		Tournaisian	Hastarian					353.7 *
Devonian	Late Devonian	Famennian						358.9
	Late Devonian	Frasnian						372.2
	Middle Devonian	Givetian						Srbsko	382.7
	Middle Devonian	Eifelian						Chotec	387.7
	Early Devonian	Emsian						Daleje/Zlichovian	393.3
		Pragian						Pragian	407.6
		Lochkovian						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							443.8
		Katian							445.2
		Sandbian							453
	Middle Ordovician	Darriwilian							458.4
	Middle Ordovician	Dapingian							467.3
	Early Ordovician	Floian							470
	Early Ordovician	Tremadocian							477.7
Cambrian	Furongian	Stage 10							Franconian †/Dresbachian/Millardan	485.4
		Stage 10								Sunwaptan	487.5
		Jiangshanian								Sunwaptan	489.5
		Jiangshanian								Steptoean	493 *
		Paibian								Steptoean	494
	Miaolingian	Guzhangian		Series 3 †					Marjumian	Albertian †	497
		Drumian							Marjumian		500.5
		Wuliuan							Stage 5 †		Topazan	504.5
		Wuliuan							Stage 5 †		Delamaran	506.5
	Series 2	Stage 4								Waucoban †	Delamaran	509
		Stage 4									Dyeran	511 *
		Stage 3									Dyeran	514
											Montezuman	514.8 *
					Begadean		519.9 *
	Terreneuvian	Stage 2					521
	Terreneuvian	Fortunian					529
													538.8