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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
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	Silurian of North America			Ordovician of North America						Central Paratethys Stages
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															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			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				Merioneth	Dolgellian/Trempealeauan	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		497
		Drumian														500.5
		Wuliuan		Stage 5 †												504.5
	Series 2	Stage 4												Caerfai		509
	Series 2	Stage 3														514
	Terreneuvian	Stage 2														521
	Terreneuvian	Fortunian														529
																	538.8