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
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 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			Neogene Mammal Ages of China	Permian of North America		Cretaceous Subepochs	Cambrian of China	Ordovician of the Baltic
Quaternary	Pleistocene	Late Pleistocene				Nihewanian							0.0117
		Chibanian											0.129
		Calabrian											0.774
		Gelasian											1.8
Neogene	Pliocene	Piacenzian	Tertiary †			Yushean							2.58
		Zanclean				Yushean							3.6
		Zanclean				Baodean							4.9
	Miocene	Messinian											5.333
		Tortonian											7.246
		Tortonian				Tunggurian							11.1
		Serravallian				Tunggurian							11.63
		Langhian				Shanwangian							13.82
		Burdigalian				Shanwangian							15.98
		Burdigalian				Xiejiaan							16.9
		Aquitanian				Xiejiaan							20.44
Paleogene	Oligocene	Chattian											23.03
	Oligocene	Rupelian											27.82
	Eocene	Priabonian											33.9
		Bartonian											37.71
		Lutetian											41.2
		Ypresian											47.8
	Paleocene	Thanetian											56
		Selandian											59.2
		Danian											61.6
Cretaceous	Late Cretaceous	Maastrichtian							Senonian				66
		Campanian											72.1
		Santonian											83.6
		Coniacian											86.3
		Turonian											89.8
		Cenomanian											93.9
	Early Cretaceous	Albian							Gallic				100.5
		Aptian											113
		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											251.902
	Lopingian	Wuchiapingian		Longtanian †									254.14
	Guadalupian	Capitanian					Capitanian						259.51
		Wordian					Wordian						264.28
		Roadian					Roadian						266.9
	Cisuralian	Kungurian					Leonardian	Cathedralian					273.01
		Kungurian						Hessian					281.9 *
		Artinskian						Hessian					283.5
		Artinskian					Wolfcampian	Lenoxian					286.1 *
		Sakmarian						Lenoxian					290.1
		Asselian			Nealian			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						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				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				Uhaku				458.4
						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		Niuchehean		Taoyuanian †	485.4
											486.3 *
											486.5
		Jiangshanian						Jiangshanian			489.5
		Paibian						Paibian			494
		Paibian						Paibian		Waergangian †/Youshuanian	494.9 *
	Miaolingian	Guzhangian						Series 3 †		Guzhangian	Wangcunian †	497
		Drumian								Drumian	Wangcunian †	500.5
		Wuliuan		Stage 5 †						Wuliuan/Taijangian		504.5
	Series 2	Stage 4								Duyunian		509
	Series 2	Stage 3								Nangaoian		514
	Terreneuvian	Stage 2								Meishucunian		521
		Fortunian								Meishucunian		529
		Fortunian								Jinnigian		530.7
													538.8