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, 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
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

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International Chronostratigraphic Timescale			Obsolete Names for ICS Units			Silurian of North America			Devonian of Eastern North America		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							Conewangan/Conneautan/Canadaway	358.9
	Late Devonian	Frasnian							West Fallsian/Sonyean	372.2
	Middle Devonian	Givetian							Geneseean/Taghanican/Tioughniogan	Cazenovian	382.7
	Middle Devonian	Eifelian							Southwoodian	Cazenovian	387.7
	Early Devonian	Emsian							Sawkillian/Deer Parkian	Helderbergian	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					Lockportian			427.4
	Wenlock	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										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