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
A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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		Permo-Triassic Subages of Eastern Europe	Devonian of Germany	Devonian of Eastern North America		Ordovician of the Baltic
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			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			Vokhmian	247.2
	Early Triassic	Induan			Vokhmian	251.2
Permian	Lopingian	Changhsingian				251.902
	Lopingian	Wuchiapingian			Longtanian †	Late Vyatkian/Early Vyatkian		254.14
	Guadalupian	Capitanian				Late Severodvinian/Early Severodvinian		259.51
		Wordian				Late Urzhumian/Early Urzhumian		264.28
		Roadian				Late Kazanian/Early Kazanian		266.9
	Cisuralian	Kungurian						273.01
		Artinskian						283.5
		Sakmarian						290.1
		Asselian						293.52
Carboniferous	Pennsylvanian	Gzhelian						298.9
		Kasimovian						303.7
		Moscovian						307
		Bashkirian						315.2
	Mississippian	Serpukhovian						323.2
		Visean						330.9
		Tournaisian						346.7
Devonian	Late Devonian	Famennian						Wocklum/Dasberg/Hemberg/Nehden	Conewangan/Conneautan/Canadaway	358.9
	Late Devonian	Frasnian						Adorf	West Fallsian/Sonyean	372.2
	Middle Devonian	Givetian						Givetian	Geneseean/Taghanican/Tioughniogan	Cazenovian	382.7
	Middle Devonian	Eifelian						Eifelian	Southwoodian	Cazenovian	387.7
	Early Devonian	Emsian						Emsian	Sawkillian/Deer Parkian	Helderbergian	393.3
		Pragian						Siegen			407.6
		Lochkovian						Gedinnine			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	Harju								Porkuni	443.8
		Katian									Pirgu	445.2
											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					458.4				Uhaku
							Lasnamagi				458.9 *
							Aseri				460.4 *
			Oeland				Kunda				462.9 *
							Kunda				Valaste †/Hunderum	464.3 *
				Volkhov			Langevoja †/Vaana/Saka					467.1 *
		Dapingian		Volkhov								467.3
		Dapingian		Billingen								469.3 *
	Early Ordovician	Floian										470
							Latorp †					470.1 *
				Hunneberg								473.7 *
		Tremadocian		Hunneberg								477.7
				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