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
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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 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			Permo-Triassic Subages of Eastern Europe	Ordovician of Britain			Silurian of England		Central Paratethys Stages	Permian of Western Europe	Permian Subages of Germany
Neogene	Pliocene	Piacenzian	Tertiary †												2.58
	Pliocene	Zanclean													3.6
	Miocene	Messinian													5.333
		Tortonian										Pannonian			7.246
		Serravallian										Sarmatian			11.63
		Serravallian										Badenian			12.8 *
		Langhian													13.82
		Burdigalian													15.98
		Aquitanian													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													66
		Campanian													72.1
		Santonian													83.6
		Coniacian													86.3
		Turonian													89.8
		Cenomanian													93.9
	Early Cretaceous	Albian													100.5
		Aptian													113
		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												Buntsandstein	251.902
	Lopingian	Wuchiapingian		Longtanian †		Late Vyatkian/Early Vyatkian							Zechstein	Buntsandstein	254.14
	Guadalupian	Capitanian				Late Severodvinian/Early Severodvinian							Rotliegendes	Ohre/Aller	259.51
		Wordian				Late Urzhumian/Early Urzhumian								Leine	264.28
		Roadian				Late Kazanian/Early Kazanian									266.9
	Cisuralian	Kungurian													273.01
		Artinskian											Autunian		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			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				Red Downtonian/Temeside Shales/Downton Castle		Whitcliffe/Leintwardine	419.2
	Pridoli				Red Downtonian/Temeside Shales/Downton Castle		Bringewood/Elton	421.3
	Ludlow	Ludfordian			Coalbrookdale		Wenlock (England)/Tickwood	423
		Gorstian						425.6
		Gorstian					Buildwas	426.4 *
	Wenlock	Homerian					Buildwas	427.4
		Homerian			Wych		Woolhope	428.4 *
		Sheinwoodian						430.5
	Llandovery	Telychian						433.4
		Telychian						436.3 *
		Aeronian						438.5
		Aeronian	Cowleigh Park		439.3 *
		Rhuddanian	Cowleigh Park		440.8
Ordovician	Late Ordovician	Hirnantian	Ashgill		Hirnantian				443.8
		Katian			Rawtheyan				445.2
					Cautleyan				448.9 *
					Pusgillian				449.3 *
			Caradoc		Streffordian				Onnian †	449.6 *
					Cheneyan					451.5 *
					Burrellian					452.7 *
		Sandbian								453
									Actonian †	453.2 *
									Marshbrookian †	Woolstonian †	454.2 *
									Longvillian †		455.2 *
					Aurelucian				Longvillian †		456.8 *
					Aurelucian				Soudleyan †/Harnagian/Costonian		457.4 *
	Middle Ordovician	Darriwilian	Llanvirn		Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn						458.4
		Darriwilian			Abereiddian/Early Llanvirn						461.3 *
		Dapingian			Abereiddian/Early Llanvirn						467.3
		Dapingian	Arenig		Fennian						468.4 *
	Early Ordovician	Floian			Fennian						470
					Whitlandian						471.1 *
					Moridunian						474.3 *
		Tremadocian	Tremadoc		Migneintian						477.7
			Tremadoc		Cressagian						480.8 *
											485 *
Cambrian	Furongian	Stage 10									485.4
		Jiangshanian									489.5
		Paibian									494
	Miaolingian	Guzhangian									Series 3 †	497
		Drumian										500.5
		Wuliuan		Stage 5 †								504.5
															509