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
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
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			Cretaceous-Cenozoic of New Zealand		Cretaceous Subepochs	Permian of China	Cambrian of West Avalonia	Ordovician of North America
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	Senonian							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	Gallic							100.5
							Urutawan								103.3
						Taitai	Korangan								108.4
		Aptian					Korangan								113
		Aptian													117.5
		Barremian													121.4
		Hauterivian						Neocomian							125.77
		Valanginian													132.6
		Berriasian		139.8
Jurassic	Late Jurassic	Tithonian				145
		Kimmeridgian				149.2
		Oxfordian				154.8
	Middle Jurassic	Callovian				161.5
		Bathonian				165.3
		Bajocian				168.2
		Aalenian				170.9
	Early Jurassic	Toarcian				174.7
		Pliensbachian				184.2
		Sinemurian				192.9
		Hettangian				199.5
Triassic	Late Triassic	Rhaetian				201.4
		Norian				208.5
		Carnian				227
	Middle Triassic	Ladinian				237
	Middle Triassic	Anisian				242
	Early Triassic	Olenekian				247.2
	Early Triassic	Induan				251.2
Permian	Lopingian	Changhsingian				Meishanian		251.902
		Changhsingian				Baoqingian		253.4 *
		Wuchiapingian				Longtanian †		Laoshanian	254.14
		Wuchiapingian				Longtanian †		Laibinian	257.7 *
	Guadalupian	Capitanian						Lengwuan	259.51
		Wordian						Kuhfengian	264.28
		Roadian						Kuhfengian	266.9
	Cisuralian	Kungurian						Luodianian	273.01
		Artinskian						Luodianian	283.5
		Artinskian						Longlinian	285.4 *
		Sakmarian						Longlinian	290.1
		Asselian						Zisongian	293.52
Carboniferous	Pennsylvanian	Gzhelian						Zisongian	298.9
		Gzhelian							300.1
		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		Cayugan						419.2
	Pridoli		Niagaran						422.5 *
	Ludlow	Ludfordian							423
	Ludlow	Gorstian							425.6
	Wenlock	Homerian							Lockportian	427.4
	Wenlock	Sheinwoodian								430.5
	Llandovery	Telychian							Ontarian	433.4
		Aeronian								438.5
										Alexandrian	438.7 *
			Medinan						Clinton		440.1 *
											440.7 *
		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								485.4
		Stage 10										487.5
		Jiangshanian										489.5
		Paibian										494
	Miaolingian	Guzhangian										Series 3 †	497
		Guzhangian											Arcadian	498.4
		Drumian												500.5
		Wuliuan				Stage 5 †								504.5
	Series 2	Stage 4											Branchian	509
		Stage 3											Branchian	514
		Stage 3											Placentian	517.1
	Terreneuvian	Stage 2												521
	Terreneuvian	Fortunian												529
															538.8