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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. 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
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
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 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			Cambrian of North America		Ordovician of Ibero-Bohemia				Cambrian of Siberia			European Faunal Zones	Cretaceous-Cenozoic of New Zealand		Neogene Mammal Ages of China
Quaternary	Holocene	Meghalayan														Wanganui	Haweran		0
		Northgrippian																	0.0042
		Greenlandian																	0.0082
	Pleistocene	Late Pleistocene																Nihewanian	0.0117
		Chibanian																	0.129
		Chibanian															Castlecliffian		0.34
		Calabrian															Castlecliffian		0.774
		Calabrian															Nukumaruan		1.63
		Gelasian													MN 17		Nukumaruan		1.8
		Gelasian													MN 17		Mangapanian		2.4
Neogene	Pliocene	Piacenzian	Tertiary †												MN 16		Mangapanian	Yushean	2.58
															MN 16		Waipipian		3
															MN 15				3.2
		Zanclean																	3.6
																	Opoitian		3.7
															MN 14				4.2
															MN 13			Baodean	4.9
	Miocene	Messinian														Taranaki	Kapitean		5.333
		Messinian															Tongaporutuan		7.2
		Tortonian													MN 12				7.246
															MN 11				7.75
															MN 10				8.7
															MN 9				9.7
															MN 9	Southland	Waiauan		11.04
															MN 7 + 8			Tunggurian	11.1
		Serravallian													MN 7 + 8				11.63
															MN 6				12.8 *
															MN 6		Lillburnian		13.05
		Langhian													MN 5		Lillburnian	Shanwangian	13.82
																	Clifdenian		15.1
																Pareora	Altonian		15.9
		Burdigalian													MN 4				15.98
															MN 3			Xiejiaan	16.9
															MN 3		Otaian		18.7
															MN 2				20
		Aquitanian																	20.44
																Landon	Waitakian		21.7
															MN 1				22.4
Paleogene	Oligocene	Chattian																	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														Mata	Haumurian		66
		Campanian															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		93.9													Arowhanan
				Clarence	Ngaterian	95.2
					Motuan	99.5
	Early Cretaceous	Albian			Motuan	100.5
					Urutawan	103.3
				Taitai	Korangan	108.4
		Aptian			Korangan	113
		Aptian				117.5
		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				251.902
	Lopingian	Wuchiapingian				Longtanian †	254.14
	Guadalupian	Capitanian					Capitanian	259.51
		Wordian					Wordian	264.28
		Roadian					Roadian	266.9
	Cisuralian	Kungurian					Leonardian	Cathedralian	273.01
		Kungurian						Hessian	281.9 *
		Artinskian						Hessian	283.5
		Artinskian					Wolfcampian	Lenoxian	286.1 *
		Sakmarian						Lenoxian	290.1
		Asselian						Nealian	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								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	Kosovian						443.8
		Katian	Kralodvorian						Bohdalec †	445.2
		Katian	Berounian							449.7 *
		Sandbian								453
										Zahorany †/Vinice	Letna †	456.2 *
									Liben †			458 *
	Middle Ordovician	Darriwilian										458.4
			Dobrotivian									458.5 *
			Oretanian		459.7 *
					Sarka †						461.7 *
		Dapingian			Klabava †						467.3
		Dapingian	Arenigian								468
	Early Ordovician	Floian	Arenigian								470
		Tremadocian	Tremadocian		477.7
		Tremadocian	Tremadocian		Mansian †						483.55 *
Cambrian	Furongian	Stage 10	Franconian †/Dresbachian/Millardan								Batyrbaian	Tavgian †	Ketyan †/Yurakian	485.4
		Stage 10												Sunwaptan	487.5
		Jiangshanian													489.5
											Aksaian				490.7 *
											Sakian				492.2 *
														Steptoean	493 *
		Paibian													494
		Paibian											Ensyan †/Maduan/Nganasanian		494.7 *
	Miaolingian	Guzhangian	Series 3 †								Marjumian	Albertian †	Ayusokkanian			497
		Guzhangian											Mayan/Menevian			499.5
		Drumian											Mayan/Menevian			500.5
		Wuliuan				Stage 5 †					Topazan		Amgan/Solvan			504.5
		Wuliuan				Stage 5 †					Delamaran					506.5
	Series 2	Stage 4										Waucoban †				509
													Toyonian	Lenian †		510 *
											Dyeran		Toyonian			511 *
													Botomian			512.5 *
		Stage 3														514
											Montezuman					514.8 *
											Montezuman		Atdabanian			515.6 *
											Begadean		Atdabanian			519.9 *
	Terreneuvian	Stage 2											Tommotian			521
		Stage 2											Nemakit-Daldynian			525.5
		Fortunian											Nemakit-Daldynian	Manykaian †		529
																			538.8