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
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
F. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) 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			Devonian of Germany	Permian of China	Ordovician of North America						Carboniferous Subepochs	Cambrian of Britain		European Faunal Units	European Faunal Zones
Quaternary	Pleistocene	Gelasian																MN 17	1.8
Neogene	Pliocene	Piacenzian	Tertiary †														Villanyian	MN 16	2.58
																	Ruscinian	MN 16	3.1 *
																		MN 15	3.2
		Zanclean																MN 15	3.6
																		MN 14	4.2
																		MN 13	4.9
	Miocene	Messinian															Turolian	MN 13	5.333
		Tortonian																MN 12	7.246
																		MN 11	7.75
																	Vallesian	MN 10	8.7
																		MN 9	9.7
																		MN 7 + 8	11.1
		Serravallian															Astaracian	MN 7 + 8	11.63
		Serravallian																MN 6	12.8 *
		Langhian																MN 5	13.82
		Burdigalian															Orleanian	MN 4	15.98
																	Orleanian	MN 3	16.9
																	Agenian	MN 2	20
		Aquitanian																MN 2	20.44
		Aquitanian																MN 1	22.4
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																	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	Late Pennsylvanian	298.9
		Gzhelian					300.1
		Kasimovian					303.7
		Moscovian				Middle Pennsylvanian	307
		Bashkirian				Early Pennsylvanian	315.2
	Mississippian	Serpukhovian				Late Mississippian	323.2
		Visean				Middle Mississippian	330.9
		Tournaisian				Early Mississippian	346.7
Devonian	Late Devonian	Famennian				Wocklum/Dasberg/Hemberg/Nehden		358.9
	Late Devonian	Frasnian				Adorf		372.2
	Middle Devonian	Givetian				Givetian		382.7
	Middle Devonian	Eifelian				Eifelian		387.7
	Early Devonian	Emsian				Emsian		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	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				Merioneth	Dolgellian/Trempealeauan	Late Cambrian	485.4
													Dolgellian/Trempealeauan		487.5
													Festiniogian		489.2 *
		Jiangshanian											Festiniogian		489.5
		Jiangshanian											Maentwrogian		493.1 *
		Paibian											Maentwrogian		494
	Miaolingian	Guzhangian										Series 3 †	St Davids		Middle Cambrian	497
		Drumian														500.5
		Wuliuan		Stage 5 †												504.5
	Series 2	Stage 4											Caerfai		Early Cambrian	509
	Series 2	Stage 3														514
	Terreneuvian	Stage 2														521
	Terreneuvian	Fortunian														529
																			538.8