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, 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
J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 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			Cretaceous-Cenozoic of New Zealand		Permian of Western Europe	Cambrian of China		Ordovician of Ibero-Bohemia				Silurian Ages of Europe	Ammonite Chrons of Northwest Europe
Quaternary	Holocene	Meghalayan				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					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					Waitakian											23.03
							Duntroonian											25.2
							Whaingaroan											27.3
		Rupelian																27.82
	Eocene	Priabonian																33.9
						Arnold	Runangan											34.6
							Kaiatan											36.7
		Bartonian					Kaiatan											37.71
		Bartonian					Bortonian											39.1
		Lutetian					Bortonian											41.2
						Dannevirke	Porangan											42.6
							Heretaungan											45.7
		Ypresian					Heretaungan											47.8
							Mangaorapan											48.9
							Waipawan											52
	Paleocene	Thanetian					Teurian											56
		Selandian																59.2
		Danian																61.6
Cretaceous	Late Cretaceous	Maastrichtian				Mata	Haumurian											66
		Campanian					Haumurian											72.1
		Santonian					Piripauan											83.6
		Santonian				Raukumara	Teratan											86.1
		Coniacian																86.3
		Turonian																89.8
							Mangaotanean											90.5
							Arowhanan											93.7
		Cenomanian					Arowhanan											93.9
						Clarence	Ngaterian											95.2
							Motuan											99.5
	Early Cretaceous	Albian					Motuan											100.5
							Urutawan											103.3
						Taitai	Korangan											108.4
		Aptian					Korangan											113
		Aptian																117.5
		Barremian																121.4
		Hauterivian																125.77
		Valanginian																132.6
		Berriasian		139.8
Jurassic	Late Jurassic	Tithonian			145
		Kimmeridgian			149.2
		Oxfordian			154.8
	Middle Jurassic	Callovian			161.5
		Bathonian			165.3
		Bajocian			Parkinsoni/Garantiana/Subfurcatum/Sauzei/Laeviuscula/Discites	168.2
		Bajocian				Humphresianum		168.4
		Aalenian			Concavum/Murchisonae/Opalinum			170.9
	Early Jurassic	Toarcian			Levesquei/Variabilis/Bifrons	Thouarsense		174.7
					Levesquei/Variabilis/Bifrons			180.1
					Serpentinum/Falciferum/Tenuicostatum			182
		Pliensbachian			Spinatum/Margaritatus/Davoei/Ibex/Jamesoni			184.2
		Sinemurian			Raricostatum/Oxynotum/Obtusum/Turneri/Semicostatum/Bucklandi			192.9
		Hettangian			Angulata/Liasicus/Planorbis			199.5
Triassic	Late Triassic	Rhaetian						201.4
		Norian						208.5
		Carnian						227
	Middle Triassic	Ladinian						237
	Middle Triassic	Anisian						242
	Early Triassic	Olenekian						247.2
		Induan						251.2
		Induan						Kathwai	251.5 *
Permian	Lopingian	Changhsingian						Kathwai	251.902
									252.4 *
								Chhidru	252.9 *
		Wuchiapingian						Chhidru	Longtanian †	Zechstein	254.14
								Kalabagh			255 *
								Wargal			256 *
	Guadalupian	Capitanian								Rotliegendes	259.51
		Wordian									264.28
											265.3 *
								Amb			266.1 *
		Roadian						Amb			266.9
		Roadian									270.7 *
	Cisuralian	Kungurian									273.01
		Artinskian								Autunian	283.5
		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		Cayugan								419.2
	Pridoli		Niagaran								422.5 *
	Ludlow	Ludfordian									423
	Ludlow	Gorstian									425.6
	Wenlock	Homerian									Gleedonian	Lockportian	427.4
		Homerian									Whitwellian	Lockportian	429.7 *
		Sheinwoodian											430.5
	Llandovery	Telychian					Ontarian					433.4
		Aeronian										438.5
												Alexandrian	438.7 *
			Medinan				Clinton						440.1 *
													440.7 *
		Rhuddanian		440.8
Ordovician	Late Ordovician	Hirnantian	Kosovian										443.8
		Katian	Kralodvorian										Bohdalec †	445.2
		Katian	Berounian											449.7 *
		Sandbian												453
														Zahorany †/Vinice	Letna †	456.2 *
													Liben †			458 *
	Middle Ordovician	Darriwilian														458.4
			Dobrotivian													458.5 *
			Oretanian			459.7 *
						Sarka †									461.7 *
		Dapingian				Klabava †									467.3
		Dapingian	Arenigian												468
	Early Ordovician	Floian	Arenigian												470
	Early Ordovician	Tremadocian	Tremadocian			477.7
Cambrian	Furongian	Stage 10	Niuchehean			Taoyuanian †										485.4
		Jiangshanian	Jiangshanian													489.5
		Paibian	Paibian													494
		Paibian	Paibian			Waergangian †/Youshuanian										494.9 *
	Miaolingian	Guzhangian	Series 3 †			Guzhangian										Wangcunian †	497
		Drumian				Drumian										Wangcunian †	500.5
		Wuliuan				Stage 5 †			Wuliuan/Taijangian								504.5
	Series 2	Stage 4							Duyunian								509
	Series 2	Stage 3							Nangaoian								514
	Terreneuvian	Stage 2							Meishucunian								521
		Fortunian							Meishucunian								529
		Fortunian							Jinnigian								530.7
																		538.8