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
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
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
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			Cambrian of Siberia			Cambrian of West Avalonia	Carboniferous of Western Europe		European Faunal Units	Cretaceous-Cenozoic of New Zealand		Cambrian of Kazakhstan	Cambrian of China		Ordovician of the Baltic
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 †									Villanyian		Mangapanian					2.58
												Villanyian		Waipipian					3
												Ruscinian							3.1 *
		Zanclean																	3.6
		Zanclean												Opoitian					3.7
	Miocene	Messinian										Turolian	Taranaki	Kapitean					5.333
		Messinian												Tongaporutuan					7.2
		Tortonian																	7.246
												Vallesian							8.7
												Vallesian	Southland	Waiauan					11.04
		Serravallian										Astaracian		Waiauan					11.63
		Serravallian												Lillburnian					13.05
		Langhian												Lillburnian					13.82
														Clifdenian					15.1
													Pareora	Altonian					15.9
		Burdigalian										Orleanian		Altonian					15.98
												Orleanian		Otaian					18.7
												Agenian							20
		Aquitanian																	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											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												Motuan					100.5
														Urutawan					103.3
													Taitai	Korangan					108.4
		Aptian												Korangan					113
		Aptian																	117.5
		Barremian		121.4
		Hauterivian		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
	Early Triassic	Induan			251.2
Permian	Lopingian	Changhsingian			251.902
	Lopingian	Wuchiapingian			Longtanian †	254.14
	Guadalupian	Capitanian				259.51
		Wordian				264.28
		Roadian				266.9
	Cisuralian	Kungurian				273.01
		Artinskian				283.5
		Sakmarian				290.1
		Asselian				293.52
		Asselian				Kuzel	297.7
Carboniferous	Pennsylvanian	Gzhelian				Kuzel	Late Pennsylvanian	298.9
						Stephanian		Stephanian C	300.3 *
								Stephanian B	300.9 *
								Stephanian A	301.4 *
		Kasimovian						Stephanian A	303.7
		Kasimovian						Cantabrian	305 *
		Moscovian					Middle Pennsylvanian	Cantabrian	307
						Westphalian		Westphalian D	307.4 *
								Westphalian C	309.8
								Westphalian B	314.6
		Bashkirian					Early Pennsylvanian	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				Late Mississippian	323.2
			Arnsbergian					324 *
			Pendleian					327.4 *
		Visean	Warnantian			Brigantian †	Middle Mississippian	330.9
			Livian			Asbian †		336.3 *
			Moliniacian			Holkerian †/Arundian/Chadian		340.2 *
		Tournaisian	Ivorian				Early Mississippian	346.7
		Tournaisian	Hastarian				Early Mississippian	353.7 *
Devonian	Late Devonian	Famennian						358.9
	Late Devonian	Frasnian						372.2
	Middle Devonian	Givetian						382.7
	Middle Devonian	Eifelian						387.7
	Early Devonian	Emsian						393.3
		Pragian						407.6
		Lochkovian						410.8
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		Harju				Porkuni	443.8
		Katian						Pirgu	445.2
								Vormsi	449.6 *
								Nabala	Johvi †	450 *
				Viru				Rakvere		450.6 *
								Oandu		452 *
		Sandbian						Keila	Idavere †	453
								Haljala		453.9
								Kukruse		456.4 *
								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			Volkhov
		Dapingian			Billingen			469.3 *
	Early Ordovician	Floian						470
								Latorp †		470.1 *
					Hunneberg					473.7 *
		Tremadocian			Hunneberg					Ungurian	477.7
					Varangu						481.3 *
					Pakerort						482.2 *
											Mansian †	483.55 *
Cambrian	Furongian	Stage 10						Batyrbaian		Tavgian †	Ketyan †/Yurakian	Batyrbaian	Niuchehean	Taoyuanian †	485.4
															486.3 *
															486.5
		Jiangshanian											Jiangshanian		489.5
								Aksaian				Aksaian			490.7 *
								Sakian				Sakian			492.2 *
		Paibian											Paibian		494
											Ensyan †/Maduan/Nganasanian				494.7 *
											Ensyan †/Maduan/Nganasanian			Waergangian †/Youshuanian	494.9 *
	Miaolingian	Guzhangian						Series 3 †		Ayusokkanian			Ayusokkanian	Guzhangian	Wangcunian †	497
										Ayusokkanian			Ayusokkanian			Arcadian	498.4
										Mayan/Menevian							499.5
		Drumian											Zhanaarykian	Drumian			500.5
		Drumian											Tuesaian	Drumian			503
		Wuliuan								Stage 5 †			Tuesaian	Amgan/Solvan	Wuliuan/Taijangian			504.5
		Wuliuan								Stage 5 †					Wuliuan/Taijangian			505.3
	Series 2	Stage 4													Branchian	Duyunian		509
											Toyonian		Lenian †	Toyonian				510 *
											Botomian			Botomian				512.5 *
		Stage 3									Botomian			Botomian		Nangaoian		514
											Atdabanian			Atdabanian				515.6 *
											Atdabanian			Atdabanian	Placentian			517.1
	Terreneuvian	Stage 2				Tommotian					Tommotian			Meishucunian		521
		Stage 2				Nemakit-Daldynian										525.5
		Fortunian	Manykaian †				529
		Fortunian	Manykaian †				Jinnigian						530.7
																			538.8