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
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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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
A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 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			Cretaceous-Cenozoic of New Zealand		Ordovician of the Baltic				Central Paratethys Stages	Permo-Triassic Subages of Eastern Europe	Cambrian of Kazakhstan	Permian Subages of Germany
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 †				Mangapanian									2.58
		Piacenzian					Waipipian									3
		Zanclean					Waipipian									3.6
		Zanclean					Opoitian									3.7
	Miocene	Messinian				Taranaki	Kapitean									5.333
		Messinian					Tongaporutuan									7.2
		Tortonian					Tongaporutuan					Pannonian				7.246
		Tortonian				Southland	Waiauan					Pannonian				11.04
		Serravallian										Sarmatian				11.63
												Badenian				12.8 *
							Lillburnian					Badenian				13.05
		Langhian					Lillburnian									13.82
							Clifdenian									15.1
						Pareora	Altonian									15.9
		Burdigalian					Altonian									15.98
		Burdigalian					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				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			Vokhmian	247.2
	Early Triassic	Induan			Vokhmian	251.2
Permian	Lopingian	Changhsingian				Buntsandstein		251.902
	Lopingian	Wuchiapingian			Longtanian †	Buntsandstein		Late Vyatkian/Early Vyatkian	254.14
	Guadalupian	Capitanian				Late Severodvinian/Early Severodvinian		Ohre/Aller	259.51
		Wordian				Late Urzhumian/Early Urzhumian		Leine	264.28
		Roadian				Late Kazanian/Early Kazanian			266.9
	Cisuralian	Kungurian							273.01
		Artinskian							283.5
		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							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	Gleedonian						427.4
		Homerian	Whitwellian						429.7 *
		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 *
				Valaste †/Hunderum					Kunda	464.3 *
									Volkhov	Langevoja †/Vaana/Saka	467.1 *
		Dapingian							Volkhov		467.3
		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 *
Cambrian	Furongian	Stage 10							Pakerort		Batyrbaian	Niuchehean	Taoyuanian †	485.4
														486.3 *
														486.5
		Jiangshanian										Jiangshanian		489.5
											Aksaian			490.7 *
											Sakian			492.2 *
		Paibian										Paibian		494
		Paibian										Paibian	Waergangian †/Youshuanian	494.9 *
	Miaolingian	Guzhangian									Series 3 †	Ayusokkanian	Guzhangian	Wangcunian †	497
		Guzhangian											Guzhangian		499.5
		Drumian			Zhanaarykian							Drumian	500.5
		Drumian			Tuesaian							Drumian	503
		Wuliuan			Tuesaian			Stage 5 †				Wuliuan/Taijangian		504.5
		Wuliuan				505.3		Stage 5 †				Wuliuan/Taijangian
	Series 2	Stage 4									Duyunian	509
					Toyonian							510 *
					Botomian							512.5 *
		Stage 3			Botomian						Nangaoian	514
		Stage 3			Atdabanian						Nangaoian	515.6 *
	Terreneuvian	Stage 2			Tommotian						Meishucunian	521
		Stage 2										525.5
		Fortunian										529
		Fortunian									Jinnigian	530.7
																538.8