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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
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			Ten Million Year Bins	Permian of the Pamirs	Ordovician of Britain				Cambrian of Siberia			Cretaceous-Cenozoic of New Zealand		Cretaceous Subepochs	Central Paratethys Stages
Quaternary	Holocene	Meghalayan				Cenozoic 6									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				Cenozoic 5												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				Cenozoic 4										Waitakian			23.03
																Duntroonian			25.2
																Whaingaroan			27.3
		Rupelian																	27.82
	Eocene	Priabonian				Cenozoic 3													33.9
															Arnold	Runangan			34.6
																Kaiatan			36.7
		Bartonian														Kaiatan			37.71
		Bartonian														Bortonian			39.1
		Lutetian				Cenozoic 2										Bortonian			41.2
															Dannevirke	Porangan			42.6
																Heretaungan			45.7
		Ypresian														Heretaungan			47.8
																Mangaorapan			48.9
																Waipawan			52
	Paleocene	Thanetian				Cenozoic 1										Teurian			56
		Selandian																	59.2
		Danian																	61.6
Cretaceous	Late Cretaceous	Maastrichtian				Cretaceous 8									Mata	Haumurian	Senonian		66
		Campanian				Cretaceous 7										Haumurian			72.1
		Santonian				Cretaceous 6										Piripauan			83.6
		Santonian													Raukumara	Teratan			86.1
		Coniacian																	86.3
		Turonian																	89.8
																Mangaotanean			90.5
																Arowhanan			93.7
		Cenomanian				Cretaceous 5										Arowhanan			93.9
															Clarence	Ngaterian			95.2
																Motuan			99.5
	Early Cretaceous	Albian				Cretaceous 4										Motuan	Gallic		100.5
																Urutawan			103.3
															Taitai	Korangan			108.4
		Aptian				Cretaceous 3										Korangan			113
		Aptian				Cretaceous 3													117.5
		Barremian				Cretaceous 2													121.4
		Hauterivian				Cretaceous 2											Neocomian		125.77
		Valanginian		Cretaceous 1	132.6
		Berriasian		Cretaceous 1	139.8
Jurassic	Late Jurassic	Tithonian		Jurassic 6			145
		Kimmeridgian		Jurassic 5			149.2
		Oxfordian					154.8
	Middle Jurassic	Callovian					161.5
		Bathonian		Jurassic 4			165.3
		Bajocian		Jurassic 4			168.2
		Aalenian		Jurassic 3			170.9
	Early Jurassic	Toarcian		Jurassic 3			174.7
		Pliensbachian		Jurassic 2			184.2
		Sinemurian		Jurassic 1			192.9
		Hettangian		Jurassic 1			199.5
Triassic	Late Triassic	Rhaetian		Triassic 4			201.4
		Norian		Triassic 4			208.5
		Carnian		Triassic 3			227
	Middle Triassic	Ladinian		Triassic 2			237
	Middle Triassic	Anisian		Triassic 2			242
	Early Triassic	Olenekian		Triassic 1			247.2
	Early Triassic	Induan		Triassic 1			251.2
Permian	Lopingian	Changhsingian		Permian 4			Dorashamian	Meishanian	251.902
		Changhsingian					Dorashamian	Baoqingian	253.4 *
		Wuchiapingian					Longtanian †	Dzhulfian	Laoshanian	254.14
		Wuchiapingian					Longtanian †	Dzhulfian	Laibinian	257.7 *
	Guadalupian	Capitanian						Midian	Lengwuan	259.51
		Wordian						Midian	Kuhfengian	264.28
		Wordian						Murgabian		266.2 *
		Roadian		Permian 3				Murgabian		266.9
	Cisuralian	Kungurian		Permian 2				Kubergandian	Luodianian	273.01
		Kungurian						Bolorian		279.8
		Artinskian								283.5
									Longlinian	285.4 *
								Yakhtashian		286
		Sakmarian						Sakmarian		290.1
		Asselian		Permian 1				Asselian	Zisongian	293.52
Carboniferous	Pennsylvanian	Gzhelian		Carboniferous 5					Zisongian	298.9
		Gzhelian								300.1
		Kasimovian								303.7
		Moscovian		Carboniferous 4						307
		Bashkirian		Carboniferous 4						315.2
	Mississippian	Serpukhovian		Carboniferous 3						323.2
		Visean		Carboniferous 2						330.9
		Tournaisian		Carboniferous 1						346.7
Devonian	Late Devonian	Famennian		Devonian 5						358.9
	Late Devonian	Frasnian		Devonian 4						372.2
	Middle Devonian	Givetian		Devonian 3						382.7
	Middle Devonian	Eifelian	387.7	Devonian 3
	Early Devonian	Emsian	Devonian 2	393.3
		Pragian	Devonian 1	407.6
		Lochkovian	Devonian 1	410.8
Silurian	Pridoli		Silurian 2	419.2
	Ludlow	Ludfordian		423
	Ludlow	Gorstian		425.6
	Wenlock	Homerian		427.4
	Wenlock	Sheinwoodian		430.5
	Llandovery	Telychian	Silurian 1	433.4
		Aeronian		438.5
		Rhuddanian		440.8
Ordovician	Late Ordovician	Hirnantian	Ordovician 5	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	Ordovician 4									453
					Actonian †	453.2 *
					Marshbrookian †	Woolstonian †					454.2 *
					Longvillian †						455.2 *
					Longvillian †					Aurelucian	456.8 *
					Soudleyan †/Harnagian/Costonian					Aurelucian	457.4 *
	Middle Ordovician	Darriwilian	Ordovician 3	Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn						458.4
		Darriwilian	Ordovician 3		Abereiddian/Early Llanvirn						461.3 *
		Dapingian	Ordovician 2		Abereiddian/Early Llanvirn						467.3
		Dapingian		Arenig	Fennian						468.4 *
	Early Ordovician	Floian			Fennian						470
					Whitlandian						471.1 *
					Moridunian						474.3 *
		Tremadocian	Ordovician 1	Tremadoc	Migneintian						Ungurian	477.7
					Cressagian							480.8 *
					Cressagian							Mansian †	483.55 *
												Mansian †	485 *
Cambrian	Furongian	Stage 10	Cambrian 5								Batyrbaian	Tavgian †	Ketyan †/Yurakian	Batyrbaian	485.4
		Jiangshanian									Batyrbaian			Batyrbaian	489.5
											Aksaian			Aksaian	490.7 *
											Sakian			Sakian	492.2 *
		Paibian													494
		Paibian											Ensyan †/Maduan/Nganasanian		494.7 *
	Miaolingian	Guzhangian	Series 3 †				Cambrian 4				Ayusokkanian			Ayusokkanian	497
		Guzhangian									Mayan/Menevian				499.5
		Drumian												Zhanaarykian	500.5
		Drumian												Tuesaian	503
		Wuliuan					Stage 5 †				Cambrian 3			Tuesaian	Amgan/Solvan	504.5
		Wuliuan					Stage 5 †									505.3
	Series 2	Stage 4														509
												Toyonian		Lenian †	Toyonian	510 *
												Botomian			Botomian	512.5 *
		Stage 3									Cambrian 2	Botomian			Botomian	514
		Stage 3										Atdabanian			Atdabanian	515.6 *
	Terreneuvian	Stage 2						Tommotian				Tommotian			521
		Stage 2						Nemakit-Daldynian				525.5
		Fortunian						Nemakit-Daldynian			Cambrian 1	Manykaian †		529
																			538.8