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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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

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		Carboniferous Subepochs	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 †				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						7.246
		Tortonian				Southland	Waiauan						11.04
		Serravallian					Waiauan						11.63
		Serravallian					Lillburnian						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			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
Carboniferous	Pennsylvanian	Gzhelian				Late Pennsylvanian		298.9
		Kasimovian				Late Pennsylvanian		303.7
		Moscovian				Middle Pennsylvanian		307
		Bashkirian				Early Pennsylvanian		315.2
	Mississippian	Serpukhovian				Late Mississippian		323.2
		Visean				Middle Mississippian		330.9
		Tournaisian				Early Mississippian		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	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					458.4	Uhaku
							Lasnamagi	458.9 *
							Aseri	460.4 *
			Oeland				Kunda	462.9 *
							Kunda	Valaste †/Hunderum	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				503	Drumian
		Wuliuan			Tuesaian				Stage 5 †	Wuliuan/Taijangian		504.5
		Wuliuan							Stage 5 †	Wuliuan/Taijangian		505.3
	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