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
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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		Ordovician of North America						Ordovician of Ibero-Bohemia				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				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	427.4
	Wenlock	Sheinwoodian	430.5
	Llandovery	Telychian	433.4
		Aeronian	438.5
		Rhuddanian	440.8
Ordovician	Late Ordovician	Hirnantian	Cincinnatian			Gamachian		Kosovian	Harju	Porkuni	443.8
		Katian				Gamachian		Kralodvorian		Bohdalec †	Pirgu	445.2
						Richmondian					Pirgu	446 *
											Vormsi	449.6 *
								Berounian				449.7 *
						Maysvillian						Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
						Maysvillian					Nabala		Johvi †	450 *
						Edenian					Nabala			450.4 *
						Edenian			Viru		Rakvere			450.6 *
			Mohawkian			Chatfieldian					Rakvere			451.1 *
							Oandu				452 *
		Sandbian					Keila				Idavere †		453
						Turinian	Keila						453.7 *
							Haljala						453.9
							Haljala						Zahorany †/Vinice	Letna †	456.2 *
				Kukruse			456.4 *
			Whiterockian	Kukruse			Canadian †					Chazyan †/Marmor			457 *
				Uhaku							Aluoja †				457.5 *
										Liben †					458 *
	Middle Ordovician	Darriwilian													458.4
								Dobrotivian							458.5 *
				Lasnamagi				Dobrotivian							458.9 *
				Lasnamagi				Oretanian							459.7 *
				Aseri											460.4 *
				Aseri						Sarka †					461.7 *
				Oeland					Kunda						462.9 *
									Kunda		Valaste †/Hunderum				464.3 *
									Volkhov						Langevoja †/Vaana/Saka	467.1 *
		Dapingian								Klabava †						467.3
								Arenigian								468
						Rangerian										469.1 *
						Rangerian			Billingen							469.3 *
	Early Ordovician	Floian	Ibexian			Blackhillsian						Jeffersonian †				Cassinian †	470
											Latorp †						470.1 *
									Hunneberg								473.7 *
					Tulean	473.9 *
		Tremadocian			Tulean	Tremadocian				477.7
					Stairsian					480.3 *
					Stairsian				Varangu	481.3 *
					Skullrockian				Varangu	Demingian †						482 *
									Pakerort	Demingian †						482.2 *
Cambrian	Furongian	Stage 10							Pakerort							485.4
																486.3 *
																486.5
																487.5
		Jiangshanian														489.5
		Paibian														494
	Miaolingian	Guzhangian														Series 3 †	497
		Drumian															500.5
		Wuliuan															Stage 5 †	504.5
																			509