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. 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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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	Permian-Jurassic of New Zealand		Carboniferous of China	Carboniferous of North America	Permian of the Salt Range
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										23.03
	Oligocene	Rupelian										27.82
	Eocene	Priabonian										33.9
		Bartonian										37.71
		Lutetian										41.2
		Ypresian										47.8
	Paleocene	Thanetian										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		Kathwai	251.5 *
Permian	Lopingian	Changhsingian					Kathwai	251.902
								252.4 *
							Chhidru	252.9 *
					Waiitian			253.2
		Wuchiapingian			Waiitian			Longtanian †	254.14
					Puruhauan				254.2
							Kalabagh		255 *
							Wargal		256 *
	Guadalupian	Capitanian			Aparima			Flettian	259.51
		Wordian							264.28
									265.3 *
								Barettian	266
							Amb		266.1 *
		Roadian				266.9	Amb
		Roadian					270.7 *
	Cisuralian	Kungurian					273.01
		Kungurian					Mangapirian	276
		Artinskian					Mangapirian	283.5
							Telfordian	285
								288.5
		Sakmarian						290.1
		Asselian						Bursumian †	293.52
Carboniferous	Pennsylvanian	Gzhelian	Virgilian					298.9
		Gzhelian	Virgilian					Xiaodushanian	300 *
		Kasimovian	Missourian					Xiaodushanian	303.7
			Missourian					Dalaun	305.8 *
			Desmoinesian						305.9 *
		Moscovian	Desmoinesian						307
		Moscovian	Atokan						312.7 *
		Bashkirian	Atokan						315.2
			Morrowan						318.4 *
								Huashibanian	318.5 *
								Lousuan	321.2 *
	Mississippian	Serpukhovian	Dewunian					Chesterian	323.2
		Serpukhovian	Shangsian						330.8 *
		Visean	Shangsian						330.9
			Jiusian						335 *
								Meramecian	335.8 *
								Osagean	343.1 *
		Tournaisian	Tangbagouan					Osagean	346.7
		Tournaisian	Tangbagouan					Kinderhookian	351.9 *
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								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