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
J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 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 Zones	Silurian Ages of Europe	Paleogene Mammal Ages of Asia		Permian-Jurassic of New Zealand
Quaternary	Pleistocene	Gelasian				MN 17						1.8
Neogene	Pliocene	Piacenzian	Tertiary †			MN 16						2.58
		Piacenzian				MN 15						3.2
		Zanclean				MN 15						3.6
						MN 14						4.2
						MN 13						4.9
	Miocene	Messinian				MN 13						5.333
		Tortonian				MN 12						7.246
						MN 11						7.75
						MN 10						8.7
						MN 9						9.7
						MN 7 + 8						11.1
		Serravallian				MN 7 + 8						11.63
		Serravallian				MN 6						12.8 *
		Langhian				MN 5						13.82
		Burdigalian				MN 4						15.98
						MN 3						16.9
						MN 2						20
		Aquitanian				MN 2						20.44
		Aquitanian				MN 1						22.4
Paleogene	Oligocene	Chattian						Tabenbulakian	Hsandagolian			23.03
	Oligocene	Rupelian						Kekeamuan	Hsandagolian			27.82
	Eocene	Priabonian						Houldjinian/Ergilian/Ulangochuian				33.9
		Bartonian						Sharamurunian/Irdinmanhan/Arshantan				37.71
		Lutetian										41.2
		Ypresian							Bumbanian			47.8
	Paleocene	Thanetian						Gashatan				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								Oteke	Puaroan	145
		Kimmeridgian								Oteke	Puaroan	149.2
										Kawhia	Ohauan	150
											Heterian	154.5
		Oxfordian										154.8
	Middle Jurassic	Callovian										161.5
		Callovian									Temaikan	164.3
		Bathonian										165.3
		Bajocian										168.2
		Aalenian										170.9
	Early Jurassic	Toarcian										174.7
		Toarcian								Herangi	Ururoan	176
		Pliensbachian									Ururoan	184.2
		Pliensbachian									Aratauran	188.9
		Sinemurian										192.9
		Hettangian										199.5
Triassic	Late Triassic	Rhaetian								Balfour	Otapirian	201.4
		Norian									Warepan	208.5
											Otamitan	217
											Oretian	221
		Carnian									Oretian	227
		Carnian								Gore	Kaihikuan	227.5
	Middle Triassic	Ladinian									Kaihikuan	237
		Ladinian		Etalian	238
		Anisian		Etalian	242
		Anisian		Malakovian	246
	Early Triassic	Olenekian		Malakovian	247.2
		Olenekian		Nelsonian	249
		Induan		Nelsonian	251.2
		Induan		DUrville	Makarewan		251.5
Permian	Lopingian	Changhsingian			Makarewan		251.902
		Changhsingian			Waiitian		253.2
		Wuchiapingian			Waiitian		Longtanian †			254.14
		Wuchiapingian			Puruhauan		Longtanian †			254.2
	Guadalupian	Capitanian			Aparima		Flettian			259.51
		Wordian					Flettian			264.28
		Wordian					Barettian			266
		Roadian								266.9
	Cisuralian	Kungurian								273.01
		Kungurian					Mangapirian			276
		Artinskian					Mangapirian			283.5
							Telfordian			285
										288.5
		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	Famennian			358.9
	Late Devonian	Frasnian	Frasnian			372.2
	Middle Devonian	Givetian	Givetian			382.7
	Middle Devonian	Eifelian	Couvinien			387.7
	Early Devonian	Emsian				393.3
		Pragian				407.6
		Pragian	Coblencien			408.2 *
		Lochkovian	Gedinnine			410.8
Silurian	Pridoli					419.2
	Ludlow	Ludfordian				423
	Ludlow	Gorstian				425.6
	Wenlock	Homerian				Gleedonian		427.4
		Homerian				Whitwellian		429.7 *
		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