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
M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
J. A. Lillegraven and M. C. McKenna. 1986. Fossil mammals from the "Mesaverde" Formation (Late Cretaceous, Judithian) of the Bighorn and Wind River basins, Wyoming, with definitions of Late Cretaceous North American Land-Mammal "Ages". American Museum Novitates 2840:1-68 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			Mammal Paleogene Zones		Permian-Jurassic of New Zealand		Cenozoic Subepochs	Cretaceous North American Land-Mammal Ages
Quaternary	Pleistocene	Late Pleistocene								Late Pleistocene		0.0117
		Chibanian								Middle Pleistocene		0.129
		Calabrian								Early Pleistocene		0.774
		Gelasian								Early Pleistocene		1.8
Neogene	Pliocene	Piacenzian	Tertiary †							Late Pliocene		2.58
	Pliocene	Zanclean								Early Pliocene		3.6
	Miocene	Messinian								Late Miocene		5.333
		Tortonian								Late Miocene		7.246
		Serravallian								Middle Miocene		11.63
		Langhian								Middle Miocene		13.82
		Burdigalian								Early Miocene		15.98
		Aquitanian								Early Miocene		20.44
Paleogene	Oligocene	Chattian				MP 30/MP 29/MP 28/MP 27/MP 26	MP 25			Late Oligocene		23.03
	Oligocene	Rupelian				MP 24/MP 23/MP 22/MP 21	MP 25			Early Oligocene		27.82
	Eocene	Priabonian				MP 20/MP 19/MP 18/MP 17B/MP 17A				Late Eocene		33.9
		Bartonian				MP 16				Middle Eocene		37.71
		Lutetian				MP 15/MP 14/MP 13/MP 12/MP 11				Middle Eocene		41.2
		Ypresian				MP 10/MP 8 + 9/MP 7				Early Eocene		47.8
	Paleocene	Thanetian				MP 6	MP 1 - 5			Late Paleocene		56
		Selandian								Middle Paleocene		59.2
		Danian								Early Paleocene		61.6
Cretaceous	Late Cretaceous	Maastrichtian									Lancian/Edmontonian	66
		Campanian									Judithian/Aquilan	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	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	Merioneth			Dolgellian/Trempealeauan	485.4
		Stage 10				Festiniogian	489.2 *
		Jiangshanian				Festiniogian	489.5
		Jiangshanian				Maentwrogian	493.1 *
		Paibian				Maentwrogian	494
	Miaolingian	Guzhangian	Series 3 †			St Davids			497
		Drumian							500.5
		Wuliuan		Stage 5 †					504.5
	Series 2	Stage 4				Caerfai			509
	Series 2	Stage 3							514
	Terreneuvian	Stage 2							521
	Terreneuvian	Fortunian							529
												538.8