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
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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			Devonian of Eastern North America		Devonian Subages	Permian of North America		Ordovician of North America						Permian-Jurassic of New Zealand		Central Paratethys Stages	Cretaceous Subepochs
Neogene	Pliocene	Piacenzian	Tertiary †																		2.58
	Pliocene	Zanclean																			3.6
	Miocene	Messinian																			5.333
		Tortonian																	Pannonian		7.246
		Serravallian																	Sarmatian		11.63
		Serravallian																	Badenian		12.8 *
		Langhian																			13.82
		Burdigalian																			15.98
		Aquitanian																			20.44
Paleogene	Oligocene	Chattian																			23.03
	Oligocene	Rupelian																			27.82
	Eocene	Priabonian																			33.9
		Bartonian																			37.71
		Lutetian																			41.2
		Ypresian																			47.8
	Paleocene	Thanetian																			56
		Selandian																			59.2
		Danian																			61.6
Cretaceous	Late Cretaceous	Maastrichtian																		Senonian	66
		Campanian																			72.1
		Santonian																			83.6
		Coniacian																			86.3
		Turonian																			89.8
		Cenomanian																			93.9
	Early Cretaceous	Albian																		Gallic	100.5
		Aptian																			113
		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			251.902
		Changhsingian																Waiitian			253.2
		Wuchiapingian		Longtanian †														Waiitian			254.14
		Wuchiapingian		Longtanian †														Puruhauan			254.2
	Guadalupian	Capitanian			Capitanian	Aparima	Flettian	259.51
		Wordian			Wordian		Flettian	264.28
		Wordian			Wordian		Barettian	266
		Roadian			Roadian			266.9
	Cisuralian	Kungurian			Leonardian			Cathedralian	273.01
							Mangapirian	Cathedralian	276
								Hessian	281.9 *
		Artinskian							283.5
							Telfordian		285
					Wolfcampian		Telfordian	Lenoxian	286.1 *
									288.5
		Sakmarian							290.1
		Asselian						Nealian	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	Conewangan/Conneautan/Canadaway						Late Famennian	358.9
									Middle Famennian	365.3 *
									Early Famennian	368.5 *
		Frasnian	West Fallsian/Sonyean						Late Frasnian	372.2
									Middle Frasnian	375.4 *
									Early Frasnian	379.3 *
	Middle Devonian	Givetian	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	Sawkillian/Deer Parkian						Helderbergian	Late Emsian	393.3
		Emsian	Sawkillian/Deer Parkian							Early Emsian	398.3 *
		Pragian								Pragian	407.6
		Lochkovian								Late Lochkovian	410.8
										Middle Lochkovian	412.8 *
										Early Lochkovian	415.6 *
Silurian	Pridoli										419.2
	Ludlow	Ludfordian									423
	Ludlow	Gorstian									425.6
	Wenlock	Homerian									Gleedonian	427.4
		Homerian									Whitwellian	429.7 *
		Sheinwoodian										430.5
	Llandovery	Telychian										433.4
		Aeronian										438.5
		Rhuddanian										440.8
Ordovician	Late Ordovician	Hirnantian										Cincinnatian	Gamachian	Harju	Porkuni	443.8
		Katian											Gamachian		Pirgu	445.2
													Richmondian		Pirgu	446 *
													Richmondian		Vormsi	449.6 *
													Maysvillian		Vormsi	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
													Maysvillian		Nabala		Johvi †	450 *
													Edenian		Nabala			450.4 *
													Edenian	Viru	Rakvere			450.6 *
												Mohawkian	Chatfieldian		Rakvere			451.1 *
															Oandu			452 *
		Sandbian													Keila		Idavere †	453
													Turinian		Keila			453.7 *
															Haljala			453.9
															Kukruse			456.4 *
												Whiterockian			Kukruse	Canadian †		Chazyan †/Marmor	457 *
															Uhaku		Aluoja †		457.5 *
	Middle Ordovician	Darriwilian													Uhaku				458.4
															Lasnamagi				458.9 *
				Aseri											460.4 *
				Oeland										Kunda	462.9 *
														Kunda	Valaste †/Hunderum		464.3 *
														Volkhov			Langevoja †/Vaana/Saka		467.1 *
		Dapingian																	467.3
													Rangerian						469.1 *
													Rangerian	Billingen					469.3 *
	Early Ordovician	Floian										Ibexian	Blackhillsian					Jeffersonian †	Cassinian †	470
															Latorp †					470.1 *
														Hunneberg						473.7 *
						Tulean	473.9 *
		Tremadocian				Tulean	477.7
						Stairsian	480.3 *
					Varangu	Stairsian	481.3 *
					Varangu	Skullrockian	Demingian †	482 *
					Pakerort		Demingian †	482.2 *
Cambrian	Furongian	Stage 10			Pakerort										485.4
															486.3 *
															486.5
															487.5
		Jiangshanian													489.5
		Paibian													494
	Miaolingian	Guzhangian													Series 3 †	497
		Drumian														500.5
		Wuliuan														Stage 5 †		504.5
																					509