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. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 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			Ordovician of Britain				Permian-Jurassic of New Zealand		Cretaceous Subepochs	Cambrian of Kazakhstan	Central Paratethys Stages	Cretaceous-Cenozoic of New Zealand
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												Pannonian		Tongaporutuan	7.246
		Tortonian												Pannonian	Southland	Waiauan	11.04
		Serravallian												Sarmatian			11.63
														Badenian			12.8 *
														Badenian		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										Senonian			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										Gallic				Motuan	100.5
																Urutawan	103.3
															Taitai	Korangan	108.4
		Aptian														Korangan	113
		Aptian															117.5
		Barremian															121.4
		Hauterivian										Neocomian					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			Meishanian	251.902
					Waiitian			Meishanian	253.2
								Baoqingian	253.4 *
		Wuchiapingian						Longtanian †	Laoshanian	254.14
					Puruhauan				Laoshanian	254.2
					Puruhauan				Laibinian	257.7 *
	Guadalupian	Capitanian			Aparima			Flettian	Lengwuan	259.51
		Wordian						Flettian	Kuhfengian	264.28
		Wordian						Barettian		266
		Roadian								266.9
	Cisuralian	Kungurian							Luodianian	273.01
		Kungurian						Mangapirian		276
		Artinskian						Mangapirian		283.5
								Telfordian		285
			Longlinian					Telfordian	285.4 *
									288.5
		Sakmarian							290.1
		Asselian	Zisongian						293.52
Carboniferous	Pennsylvanian	Gzhelian	Zisongian						298.9
		Gzhelian							300.1
		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				Ashgill	Hirnantian		443.8
		Katian					Rawtheyan		445.2
							Cautleyan		448.9 *
							Pusgillian		449.3 *
						Caradoc	Streffordian		Onnian †	449.6 *
							Cheneyan			451.5 *
							Burrellian			452.7 *
		Sandbian								453
									Actonian †	453.2 *
									Marshbrookian †	Woolstonian †	454.2 *
									Longvillian †		455.2 *
							Aurelucian		Longvillian †		456.8 *
							Aurelucian		Soudleyan †/Harnagian/Costonian		457.4 *
	Middle Ordovician	Darriwilian				Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn				458.4
		Darriwilian					Abereiddian/Early Llanvirn				461.3 *
		Dapingian					Abereiddian/Early Llanvirn				467.3
		Dapingian				Arenig	Fennian				468.4 *
	Early Ordovician	Floian					Fennian				470
							Whitlandian				471.1 *
							Moridunian				474.3 *
		Tremadocian				Tremadoc	Migneintian				Ungurian	477.7
						Tremadoc	Cressagian					480.8 *
												485 *
Cambrian	Furongian	Stage 10									Batyrbaian	485.4
		Jiangshanian									Batyrbaian	489.5
											Aksaian	490.7 *
											Sakian	492.2 *
		Paibian									Sakian	494
	Miaolingian	Guzhangian									Series 3 †	Ayusokkanian	497
		Guzhangian										499.5
		Drumian		Zhanaarykian								500.5
		Drumian		Tuesaian								503
		Wuliuan		Tuesaian								Stage 5 †	504.5
		Wuliuan										Stage 5 †	505.3
	Series 2	Stage 4											509
				Toyonian									510 *
				Botomian									512.5 *
		Stage 3		Botomian									514
		Stage 3		Atdabanian	515.6 *
	Terreneuvian	Stage 2		Tommotian	521
																	525.5