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
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
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

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		Cambrian of Siberia		Carboniferous Subepochs	Neogene Mammal Ages of China
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 †				Mangapanian				Yushean	2.58
		Piacenzian					Waipipian					3
		Zanclean					Waipipian					3.6
							Opoitian					3.7
							Opoitian				Baodean	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					Lillburnian				Shanwangian	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				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	Bolindian					443.8
		Katian	Bolindian					445.2
			Eastonian					449 *
			Gisbornian					452 *
		Sandbian	Gisbornian					453
	Middle Ordovician	Darriwilian	Darriwilian					458.4
		Dapingian	Yapeenian					467.3
		Dapingian	Castlemainian					468.5 *
	Early Ordovician	Floian	Chewtonian					470
			Bendigonian					471.8 *
			Lancefieldian				473.5 *
		Tremadocian	Lancefieldian				477.7
			Warendian				482.8 *
			Warendian				Mansian †	483.55 *
Cambrian	Furongian	Stage 10	Batyrbaian				Tavgian †	Ketyan †/Yurakian	Merioneth	Dolgellian/Trempealeauan	485.4
		Stage 10		Festiniogian						489.2 *
		Jiangshanian								489.5
			Aksaian							490.7 *
			Sakian							492.2 *
				Maentwrogian						493.1 *
		Paibian								494
		Paibian						Ensyan †/Maduan/Nganasanian		494.7 *
	Miaolingian	Guzhangian	Series 3 †	Ayusokkanian					St Davids		497
		Guzhangian		Mayan/Menevian							499.5
		Drumian		Mayan/Menevian							500.5
		Wuliuan		Stage 5 †	Amgan/Solvan						504.5
	Series 2	Stage 4			Amgan/Solvan				Caerfai		509
					Toyonian		Lenian †				510 *
					Botomian						512.5 *
		Stage 3			Botomian						514
		Stage 3			Atdabanian						515.6 *
	Terreneuvian	Stage 2			Tommotian						521
		Stage 2			Nemakit-Daldynian						525.5
		Fortunian			Nemakit-Daldynian		Manykaian †				529
												538.8