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. 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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. 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			Cambrian Epochs	European Faunal Units	Permian-Jurassic of New Zealand		Cambrian of Australia	Cambrian of Siberia			Cambrian of North America
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
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	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					Late Cambrian	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 †	Middle Cambrian	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						Early Cambrian						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