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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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			Permian of North America	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			Capitanian		Aparima	Flettian	Lengwuan	259.51
		Wordian			Wordian			Flettian	Kuhfengian	264.28
		Wordian			Wordian			Barettian		266
		Roadian			Roadian					266.9
	Cisuralian	Kungurian			Leonardian				Cathedralian	Luodianian	273.01
								Mangapirian	Cathedralian		276
									Hessian		281.9 *
		Artinskian									283.5
			Telfordian					285
								Longlinian		285.4 *
					Wolfcampian				Lenoxian	286.1 *
										288.5
		Sakmarian								290.1
		Asselian						Nealian	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			514		Botomian
		Stage 3			Atdabanian		515.6 *
	Terreneuvian	Stage 2			Tommotian		521
																							525.5