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
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 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

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			Cretaceous Subepochs	Permian of the Russian Platform		Devonian of Germany	Neogene Mammal Ages of China	Devonian Subages	Cretaceous-Cenozoic of New Zealand
Quaternary	Holocene	Meghalayan										Wanganui	Haweran	0
		Northgrippian												0.0042
		Greenlandian												0.0082
	Pleistocene	Late Pleistocene								Nihewanian				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 †							Yushean			Mangapanian	2.58
		Piacenzian											Waipipian	3
		Zanclean											Waipipian	3.6
													Opoitian	3.7
										Baodean			Opoitian	4.9
	Miocene	Messinian										Taranaki	Kapitean	5.333
		Messinian											Tongaporutuan	7.2
		Tortonian											Tongaporutuan	7.246
												Southland	Waiauan	11.04
										Tunggurian				11.1
		Serravallian												11.63
		Serravallian											Lillburnian	13.05
		Langhian								Shanwangian			Lillburnian	13.82
													Clifdenian	15.1
												Pareora	Altonian	15.9
		Burdigalian												15.98
										Xiejiaan				16.9
													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				145
		Kimmeridgian				149.2
		Oxfordian				154.8
	Middle Jurassic	Callovian				161.5
		Bathonian				165.3
		Bajocian				168.2
		Aalenian				170.9
	Early Jurassic	Toarcian				174.7
		Pliensbachian				184.2
		Sinemurian				192.9
		Hettangian				199.5
Triassic	Late Triassic	Rhaetian				201.4
		Norian				208.5
		Carnian				227
	Middle Triassic	Ladinian				237
	Middle Triassic	Anisian				242
	Early Triassic	Olenekian				247.2
		Induan				251.2
		Induan				Kathwai	251.5 *
Permian	Lopingian	Changhsingian				Kathwai	251.902
							252.4 *
						Chhidru	252.9 *
		Wuchiapingian				Chhidru	Longtanian †	254.14
						Kalabagh		255 *
						Wargal		256 *
								Tatarian	Vyatkian		256.8 *
	Guadalupian	Capitanian							Severodvinian	259.51
		Wordian							Urzhumian	264.28
										265.3 *
						Amb				266.1 *
		Roadian				Amb		Kazanian	Povolzhian	266.9
		Roadian				Sokian		Kazanian		270.7 *
	Cisuralian	Kungurian				Kungurian		Irenian/Ufimian		273.01
								Filipovian		276.5 *
								Saraninian		280.1 *
		Artinskian				Artinskian		Sarginian		283.5
								Irginian		285.9 *
								Burtsevian		287.8 *
		Sakmarian				Sakmarian		Sterlitamakian		290.1
		Sakmarian				Sakmarian		Tastubian		291.7 *
		Asselian				Asselian		Shikhanian		293.52
								Uskalykian		294.8
								Surenian		297.5
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	Wocklum/Dasberg/Hemberg/Nehden							Late Famennian	358.9
										Middle Famennian	365.3 *
										Early Famennian	368.5 *
		Frasnian	Adorf							Late Frasnian	372.2
										Middle Frasnian	375.4 *
										Early Frasnian	379.3 *
	Middle Devonian	Givetian	Givetian							Late Givetian	382.7
										Middle Givetian	383.7 *
										Early Givetian	385.9 *
		Eifelian	Eifelian							Late Eifelian	387.7
		Eifelian	Eifelian							Early Eifelian	390.3 *
	Early Devonian	Emsian	Emsian							Late Emsian	393.3
		Emsian	Emsian							Early Emsian	398.3 *
		Pragian	Siegen							Pragian	407.6
		Lochkovian	Gedinnine	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
	Early Ordovician	Tremadocian			477.7
Cambrian	Furongian	Stage 10			485.4
		Jiangshanian			489.5
		Paibian			494
	Miaolingian	Guzhangian			Series 3 †					497
		Drumian								500.5
		Wuliuan					Stage 5 †			504.5
														509