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. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) 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
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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			Carboniferous of Western Europe		European Faunal Units	Permian-Jurassic of New Zealand		Cambrian of Australia	Cambrian of Siberia
Neogene	Pliocene	Piacenzian	Tertiary †					Villanyian							2.58
		Piacenzian						Ruscinian							3.1 *
		Zanclean						Ruscinian							3.6
	Miocene	Messinian						Turolian							5.333
		Tortonian						Turolian							7.246
		Tortonian						Vallesian							8.7
		Serravallian						Astaracian							11.63
		Langhian						Astaracian							13.82
		Burdigalian						Orleanian							15.98
		Burdigalian						Agenian							20
		Aquitanian						Agenian							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													66
		Campanian													72.1
		Santonian													83.6
		Coniacian													86.3
		Turonian													89.8
		Cenomanian													93.9
	Early Cretaceous	Albian													100.5
		Aptian													113
		Barremian													121.4
		Hauterivian													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 †	254.14					Waiitian
		Wuchiapingian		Longtanian †	Puruhauan	254.2
	Guadalupian	Capitanian			Aparima	Flettian	259.51
		Wordian				Flettian	264.28
		Wordian				Barettian	266
		Roadian					266.9
	Cisuralian	Kungurian					273.01
		Kungurian				Mangapirian	276
		Artinskian				Mangapirian	283.5
						Telfordian	285
							288.5
		Sakmarian					290.1
		Asselian					293.52
		Asselian					Kuzel	297.7
Carboniferous	Pennsylvanian	Gzhelian					Kuzel	298.9
							Stephanian	Stephanian C	300.3 *
								Stephanian B	300.9 *
								Stephanian A	301.4 *
		Kasimovian						Stephanian A	303.7
		Kasimovian						Cantabrian	305 *
		Moscovian	307					Cantabrian
			Westphalian				Westphalian D	307.4 *
							Westphalian C	309.8
							Westphalian B	314.6
		Bashkirian					Westphalian B	315.2
							Westphalian A	317 *
			Namurian				Yeadonian	318.8 *
							Marsdenian	320.2 *
							Kinderscoutian	321.5 *
							Alportian	322 *
							Chokierian	323.1 *
	Mississippian	Serpukhovian					Chokierian	323.2
							Arnsbergian	324 *
							Pendleian	327.4 *
		Visean	Warnantian				Brigantian †	330.9
			Livian				Asbian †	336.3 *
			Moliniacian				Holkerian †/Arundian/Chadian	340.2 *
		Tournaisian	Ivorian					346.7
		Tournaisian	Hastarian					353.7 *
Devonian	Late Devonian	Famennian						Late Famennian	358.9
								Middle Famennian	365.3 *
								Early Famennian	368.5 *
		Frasnian						Late Frasnian	372.2
								Middle Frasnian	375.4 *
								Early Frasnian	379.3 *
	Middle Devonian	Givetian						Late Givetian	382.7
								Middle Givetian	383.7 *
								Early Givetian	385.9 *
		Eifelian						Late Eifelian	387.7
		Eifelian						Early Eifelian	390.3 *
	Early Devonian	Emsian						Late Emsian	393.3
		Emsian						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							427.4
	Wenlock	Sheinwoodian							430.5
	Llandovery	Telychian							433.4
		Aeronian							438.5
		Rhuddanian							440.8
Ordovician	Late Ordovician	Hirnantian							443.8
		Katian							445.2
		Sandbian		453
	Middle Ordovician	Darriwilian		458.4
	Middle Ordovician	Dapingian		467.3
	Early Ordovician	Floian		470
		Tremadocian		477.7
		Tremadocian		Mansian †					483.55 *
Cambrian	Furongian	Stage 10		Datsonian					Batyrbaian	Tavgian †	Ketyan †/Yurakian	Franconian †/Dresbachian/Millardan	485.4
				Payntonian									486.8 *
				Payntonian	Sunwaptan	487.5
		Jiangshanian		Iverian		489.5
						Aksaian			490.7 *
						Sakian			492.2 *
					Steptoean				493 *
		Paibian		Idamean					494
		Paibian		Idamean					Ensyan †/Maduan/Nganasanian		494.7 *
	Miaolingian	Guzhangian		Series 3 †	Mindyallan	Ayusokkanian					Marjumian	Albertian †	497
					Boomerangian	Ayusokkanian							499
					Boomerangian	Mayan/Menevian							499.5
		Drumian			Undillan								500.5
		Drumian			Floran								503
		Wuliuan			Stage 5 †	Templetonian					Amgan/Solvan		Topazan	504.5
						Templetonian							Delamaran	506.5
						Ordian								507.8 *
	Series 2	Stage 4										Waucoban †		509
									Toyonian		Lenian †			510 *
														510.8 *
													Dyeran	511 *
									Botomian					512.5 *
		Stage 3												514
													Montezuman	514.8 *
									Atdabanian				Montezuman	515.6 *
									Atdabanian				Begadean	519.9 *
	Terreneuvian	Stage 2							Tommotian					521
		Stage 2							Nemakit-Daldynian					525.5
		Fortunian							Nemakit-Daldynian		Manykaian †			529
															538.8