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
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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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

Show more time

Show linear time

International Chronostratigraphic Timescale			Obsolete Names for ICS Units			Ten Million Year Bins	Cretaceous-Cenozoic of New Zealand		Devonian of Eastern North America		Permian of the Pamirs	Permian-Jurassic of New Zealand		Cambrian of North America
Quaternary	Holocene	Meghalayan				Cenozoic 6	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 †					Mangapanian							2.58
		Piacenzian						Waipipian							3
		Zanclean						Waipipian							3.6
		Zanclean						Opoitian							3.7
	Miocene	Messinian					Taranaki	Kapitean							5.333
		Messinian						Tongaporutuan							7.2
		Tortonian						Tongaporutuan							7.246
		Tortonian					Southland	Waiauan							11.04
		Serravallian				Cenozoic 5		Waiauan							11.63
		Serravallian						Lillburnian							13.05
		Langhian						Lillburnian							13.82
								Clifdenian							15.1
							Pareora	Altonian							15.9
		Burdigalian						Altonian							15.98
		Burdigalian						Otaian							18.7
		Aquitanian						Otaian							20.44
		Aquitanian					Landon	Waitakian							21.7
Paleogene	Oligocene	Chattian				Cenozoic 4		Waitakian							23.03
								Duntroonian							25.2
								Whaingaroan							27.3
		Rupelian													27.82
	Eocene	Priabonian				Cenozoic 3									33.9
							Arnold	Runangan							34.6
								Kaiatan							36.7
		Bartonian						Kaiatan							37.71
		Bartonian						Bortonian							39.1
		Lutetian				Cenozoic 2		Bortonian							41.2
							Dannevirke	Porangan							42.6
								Heretaungan							45.7
		Ypresian						Heretaungan							47.8
								Mangaorapan							48.9
								Waipawan							52
	Paleocene	Thanetian				Cenozoic 1		Teurian							56
		Selandian													59.2
		Danian													61.6
Cretaceous	Late Cretaceous	Maastrichtian				Cretaceous 8	Mata	Haumurian							66
		Campanian				Cretaceous 7		Haumurian							72.1
		Santonian				Cretaceous 6		Piripauan							83.6
		Santonian					Raukumara	Teratan							86.1
		Coniacian													86.3
		Turonian													89.8
								Mangaotanean							90.5
								Arowhanan							93.7
		Cenomanian				Cretaceous 5		Arowhanan							93.9
							Clarence	Ngaterian							95.2
								Motuan							99.5
	Early Cretaceous	Albian				Cretaceous 4		Motuan							100.5
								Urutawan							103.3
							Taitai	Korangan							108.4
		Aptian				Cretaceous 3		Korangan							113
		Aptian				Cretaceous 3									117.5
		Barremian				Cretaceous 2									121.4
		Hauterivian				Cretaceous 2									125.77
		Valanginian				Cretaceous 1									132.6
		Berriasian		139.8		Cretaceous 1
Jurassic	Late Jurassic	Tithonian		Jurassic 6		Oteke	Puaroan		145
		Kimmeridgian		Jurassic 5		Oteke	Puaroan		149.2
						Kawhia	Ohauan		150
							Heterian		154.5
		Oxfordian							154.8
	Middle Jurassic	Callovian							161.5
		Callovian					Temaikan		164.3
		Bathonian		Jurassic 4					165.3
		Bajocian		Jurassic 4					168.2
		Aalenian		Jurassic 3					170.9
	Early Jurassic	Toarcian							174.7
		Toarcian				Herangi	Ururoan		176
		Pliensbachian		Jurassic 2			Ururoan		184.2
		Pliensbachian		Jurassic 2			Aratauran		188.9
		Sinemurian		Jurassic 1					192.9
		Hettangian		Jurassic 1					199.5
Triassic	Late Triassic	Rhaetian		Triassic 4		Balfour	Otapirian		201.4
		Norian					Warepan		208.5
							Otamitan		217
							Oretian		221
		Carnian		Triassic 3			Oretian		227
		Carnian		Triassic 3		Gore	Kaihikuan		227.5
	Middle Triassic	Ladinian		Triassic 2			Kaihikuan		237
		Ladinian					Etalian		238
		Anisian					Etalian		242
		Anisian					Malakovian		246
	Early Triassic	Olenekian		Triassic 1			Malakovian		247.2
		Olenekian					Nelsonian		249
		Induan					Nelsonian		251.2
		Induan				DUrville	Makarewan		251.5
Permian	Lopingian	Changhsingian		Permian 4			Makarewan		Dorashamian	251.902
		Changhsingian					Waiitian		Dorashamian	253.2
		Wuchiapingian					Waiitian		Longtanian †	Dzhulfian	254.14
		Wuchiapingian					Puruhauan		Longtanian †	Dzhulfian	254.2
	Guadalupian	Capitanian					Midian		Aparima	Flettian	259.51
		Wordian								Flettian	264.28
										Barettian	266
							Murgabian				266.2 *
		Roadian		Permian 3			Murgabian				266.9
	Cisuralian	Kungurian		Permian 2			Kubergandian				273.01
							Kubergandian			Mangapirian	276
							Bolorian				279.8
		Artinskian									283.5
										Telfordian	285
			Yakhtashian				286			Telfordian
			Yakhtashian							288.5
		Sakmarian	Sakmarian							290.1
		Asselian	Permian 1	Asselian						293.52
Carboniferous	Pennsylvanian	Gzhelian	Carboniferous 5							298.9
		Kasimovian	Carboniferous 5							303.7
		Moscovian	Carboniferous 4							307
		Bashkirian	Carboniferous 4							315.2
	Mississippian	Serpukhovian	Carboniferous 3							323.2
		Visean	Carboniferous 2							330.9
		Tournaisian	Carboniferous 1							346.7
Devonian	Late Devonian	Famennian	Devonian 5							Conewangan/Conneautan/Canadaway	Late Famennian	358.9
											Middle Famennian	365.3 *
											Early Famennian	368.5 *
		Frasnian	Devonian 4							West Fallsian/Sonyean	Late Frasnian	372.2
								Middle Frasnian			375.4 *
								Early Frasnian			379.3 *
	Middle Devonian	Givetian	Devonian 3					Geneseean/Taghanican/Tioughniogan		Cazenovian	Late Givetian	382.7
											Middle Givetian	383.7 *
											Early Givetian	385.9 *
		Eifelian			Southwoodian			Late Eifelian			387.7
		Eifelian			Southwoodian			Early Eifelian			390.3 *
	Early Devonian	Emsian	Devonian 2		Sawkillian/Deer Parkian			Helderbergian		Late Emsian	393.3
		Emsian	Devonian 2		Sawkillian/Deer Parkian					Early Emsian	398.3 *
		Pragian	Devonian 1							Pragian	407.6
		Lochkovian								Late Lochkovian	410.8
										Middle Lochkovian	412.8 *
										Early Lochkovian	415.6 *
Silurian	Pridoli		Silurian 2								419.2
	Ludlow	Ludfordian									423
	Ludlow	Gorstian									425.6
	Wenlock	Homerian									427.4
	Wenlock	Sheinwoodian									430.5
	Llandovery	Telychian	Silurian 1								433.4
		Aeronian									438.5
		Rhuddanian									440.8
Ordovician	Late Ordovician	Hirnantian	Ordovician 5								443.8
		Katian	Ordovician 5								445.2
		Sandbian	Ordovician 4								453
	Middle Ordovician	Darriwilian	Ordovician 3								458.4
	Middle Ordovician	Dapingian	Ordovician 2								467.3
	Early Ordovician	Floian	Ordovician 2								470
	Early Ordovician	Tremadocian	Ordovician 1								477.7
Cambrian	Furongian	Stage 10	Cambrian 5								Franconian †/Dresbachian/Millardan	485.4
		Stage 10										Sunwaptan	487.5
		Jiangshanian										Sunwaptan	489.5
		Jiangshanian										Steptoean	493 *
		Paibian										Steptoean	494
	Miaolingian	Guzhangian	Series 3 †								Cambrian 4	Marjumian	Albertian †	497
		Drumian									Cambrian 4	Marjumian		500.5
		Wuliuan				Stage 5 †					Cambrian 3	Topazan		504.5
		Wuliuan				Stage 5 †						Delamaran		506.5
	Series 2	Stage 4										Delamaran	Waucoban †	509
		Stage 4										Dyeran		511 *
		Stage 3									Cambrian 2	Dyeran		514
												Montezuman		514.8 *
												Begadean		519.9 *
	Terreneuvian	Stage 2												521
	Terreneuvian	Fortunian									Cambrian 1			529
															538.8