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. O. Woodburne. 1987. A prospectus of the North American Mammal Ages. In: Woodburne, M. O. (ed.), Cenozoic Mammals of North America. University of California Press, Berkelery, CA 285-290 view
J. Alroy. 2000. New methods for quantifying macroevolutionary patterns and processes. Paleobiology 26(4):707-733 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			North American Mammal Subages/Zones			Permian-Jurassic of New Zealand
Quaternary	Pleistocene	Late Pleistocene				Sheridanian					0.0117
		Chibanian				Sheridanian					0.129
		Chibanian				Cudahyan/Sappan					0.21
		Calabrian				Cudahyan/Sappan					0.774
		Calabrian				Senecan/Rexroadian					1.4
		Gelasian									1.8
Neogene	Pliocene	Piacenzian	Tertiary †								2.58
		Zanclean									3.6
		Zanclean				Late Hemphillian/late Early Hemphillian/early Early Hemphillian					4.7
	Miocene	Messinian									5.333
		Tortonian									7.246
		Tortonian				Late Clarendonian/Early Clarendonian					9.4
		Serravallian				Late Clarendonian/Early Clarendonian					11.63
		Serravallian				late Late Barstovian/early Late Barstovian/Early Barstovian					12.5
		Langhian									13.82
		Burdigalian									15.98
						Late Hemingfordian/Early Hemingfordian					16.3
						late Late Arikareean/early Late Arikareean/late Early Arikareean/early Early Arikareean	Harrisonian				18.5
		Aquitanian									20.44
Paleogene	Oligocene	Chattian									23.03
							Monroecreekian				23.1 *
							Geringian				24.7 *
		Rupelian					Geringian				27.82
		Rupelian									29.5
	Eocene	Priabonian				Late Chadronian/Middle Chadronian/Early Chadronian					33.9
		Priabonian									37
		Bartonian									37.71
		Bartonian				Late Uintan/Early Uintan					39.7
		Lutetian				Late Uintan/Early Uintan					41.2
		Lutetian				Twinbuttean/Blacksforkian/Gardnerbuttian					46.2
		Ypresian				Twinbuttean/Blacksforkian/Gardnerbuttian					47.8
						Lostcabinian/Lysitean/Graybullian/Sandcouleean					50.5
								Cf3/Cf2/Cf1			54.9
	Paleocene	Thanetian						Cf3/Cf2/Cf1			56
		Thanetian						Ti6/Ti5/Ti4/Ti3/Ti2/Ti1			56.2
		Selandian						Ti6/Ti5/Ti4/Ti3/Ti2/Ti1			59.2
		Selandian						To3/To2/To1			60.9
		Danian						To3/To2/To1			61.6
		Danian						Pu3/Pu2/Pu1			63.8
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	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