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. A. Lillegraven and M. C. McKenna. 1986. Fossil mammals from the "Mesaverde" Formation (Late Cretaceous, Judithian) of the Bighorn and Wind River basins, Wyoming, with definitions of Late Cretaceous North American Land-Mammal "Ages". American Museum Novitates 2840:1-68 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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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			Cretaceous North American Land-Mammal Ages	Cretaceous Subepochs	Cretaceous-Cenozoic of New Zealand		Cambrian of Kazakhstan	Central Paratethys Stages
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		Pannonian	7.246
		Tortonian						Southland	Waiauan		Pannonian	11.04
		Serravallian									Sarmatian	11.63
											Badenian	12.8 *
									Lillburnian		Badenian	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				Lancian/Edmontonian	Senonian	Mata	Haumurian			66
		Campanian				Judithian/Aquilan			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					Gallic		Motuan			100.5
									Urutawan			103.3
								Taitai	Korangan			108.4
		Aptian							Korangan			113
		Aptian										117.5
		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					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		298.9
		Gzhelian								300.1
		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	443.8
		Katian	445.2
		Sandbian	453
	Middle Ordovician	Darriwilian	458.4
	Middle Ordovician	Dapingian	467.3
	Early Ordovician	Floian	470
	Early Ordovician	Tremadocian	Ungurian			477.7
Cambrian	Furongian	Stage 10	Batyrbaian			485.4
		Jiangshanian	Batyrbaian			489.5
			Aksaian			490.7 *
			Sakian			492.2 *
		Paibian	Sakian	494
	Miaolingian	Guzhangian	Series 3 †	Ayusokkanian	497
		Guzhangian			499.5
		Drumian		Zhanaarykian	500.5
		Drumian		Tuesaian	503
		Wuliuan		Tuesaian	Stage 5 †	504.5
		Wuliuan			Stage 5 †	505.3
	Series 2	Stage 4				509
				Toyonian		510 *
				Botomian		512.5 *
		Stage 3		Botomian		514
		Stage 3		Atdabanian		515.6 *
	Terreneuvian	Stage 2		Tommotian		521
												525.5