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. 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
M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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

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			European Faunal Units	Mammal Paleogene Zones		Obsolete Carboniferous Ages of China	Cretaceous-Cenozoic of New Zealand
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 †			Villanyian					Mangapanian	2.58
						Villanyian					Waipipian	3
						Ruscinian						3.1 *
		Zanclean										3.6
		Zanclean									Opoitian	3.7
	Miocene	Messinian				Turolian				Taranaki	Kapitean	5.333
		Messinian									Tongaporutuan	7.2
		Tortonian										7.246
						Vallesian						8.7
						Vallesian				Southland	Waiauan	11.04
		Serravallian				Astaracian					Waiauan	11.63
		Serravallian									Lillburnian	13.05
		Langhian									Lillburnian	13.82
											Clifdenian	15.1
										Pareora	Altonian	15.9
		Burdigalian				Orleanian					Altonian	15.98
						Orleanian					Otaian	18.7
						Agenian						20
		Aquitanian										20.44
		Aquitanian								Landon	Waitakian	21.7
Paleogene	Oligocene	Chattian					MP 30/MP 29/MP 28/MP 27/MP 26	MP 25			Waitakian	23.03
											Duntroonian	25.2
											Whaingaroan	27.3
		Rupelian					MP 24/MP 23/MP 22/MP 21					27.82
	Eocene	Priabonian					MP 20/MP 19/MP 18/MP 17B/MP 17A					33.9
										Arnold	Runangan	34.6
											Kaiatan	36.7
		Bartonian					MP 16				Kaiatan	37.71
		Bartonian					MP 16				Bortonian	39.1
		Lutetian					MP 15/MP 14/MP 13/MP 12/MP 11				Bortonian	41.2
										Dannevirke	Porangan	42.6
											Heretaungan	45.7
		Ypresian					MP 10/MP 8 + 9/MP 7				Heretaungan	47.8
											Mangaorapan	48.9
											Waipawan	52
	Paleocene	Thanetian					MP 6	MP 1 - 5			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									Arowhanan	93.9
										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							259.51
		Wordian							264.28
		Roadian							266.9
	Cisuralian	Kungurian							273.01
		Artinskian							283.5
		Sakmarian							290.1
		Asselian				293.52
Carboniferous	Pennsylvanian	Gzhelian				Mapingian †			298.9
		Kasimovian				Mapingian †			303.7
		Kasimovian							305.9
		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	477.7
Cambrian	Furongian	Stage 10	485.4
		Jiangshanian	489.5
		Paibian	494
	Miaolingian	Guzhangian	Series 3 †				497
		Drumian					500.5
		Wuliuan			Stage 5 †		504.5
												509