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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
F. J. Prevosti, C. O. Romano, A. M. Forasiepi, S. Hemming, R. Bonini, A. M. Candela, E. Cerdeño, M. C. Madozzo Jaén, P. E. Ortiz, F. Pujos, L. Rasia, G. I. Schmidt, M. Taglioretti, R. D. E. MacPhee, and U. F. J. Pardiñas. 2021. New radiometric 40Ar–39Ar dates and faunistic analyses refine evolutionary dynamics of Neogene vertebrate assemblages in southern South America. Scientific Reports 2021(11):9830 view
J. J. Flynn and C. C. Swisher, III. 1995. Cenozoic South American Land Mammal Ages: correlation to global geochronology. Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication 54:317-333 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 Subepochs	Cretaceous-Cenozoic of New Zealand		Permian of the Pamirs	Silurian of North America			South American Land Mammal Ages
Quaternary	Holocene	Meghalayan					Wanganui	Haweran							0
		Northgrippian													0.0042
		Greenlandian													0.0082
	Pleistocene	Late Pleistocene											Lujanian		0.0117
		Chibanian											Lujanian		0.129
													Ensenadan		0.3 *
								Castlecliffian							0.34
		Calabrian						Castlecliffian							0.774
								Nukumaruan							1.63
													Sanandresian	Uquian †	1.7 *
		Gelasian													1.8
		Gelasian						Mangapanian							2.4
Neogene	Pliocene	Piacenzian	Tertiary †										Vorohuean		2.58
													Chapadmalalan		2.9 *
								Waipipian							3
		Zanclean						Waipipian							3.6
								Opoitian					Montehermosan		3.7 *
								Opoitian					Huayquerian		4.9 *
	Miocene	Messinian					Taranaki	Kapitean							5.333
		Messinian						Tongaporutuan							7.2
		Tortonian													7.246
													Chasicoan		7.9 *
													Mayoan		9.9 *
													Laventan		10.9 *
							Southland	Waiauan							11.04
		Serravallian						Waiauan							11.63
								Lillburnian							13.05
													Colloncuran		13.7 *
		Langhian													13.82
								Clifdenian							15.1
								Clifdenian					Friasian		15.4 *
							Pareora	Altonian							15.9
		Burdigalian													15.98
													Santacrucian		16.2 *
													Colhuehuapian		17.4 *
								Otaian							18.7
		Aquitanian													20.44
													Deseadan		20.9 *
							Landon	Waitakian							21.7
Paleogene	Oligocene	Chattian						Waitakian							23.03
								Duntroonian							25.2
								Whaingaroan							27.3
		Rupelian													27.82
		Rupelian											Tinguirirican		28.9 *
	Eocene	Priabonian													33.9
							Arnold	Runangan							34.6
								Runangan					Divisaderan		35.9 *
								Kaiatan							36.7
		Bartonian						Kaiatan							37.71
		Bartonian						Bortonian							39.1
		Lutetian													41.2
													Mustersan		41.9 *
							Dannevirke	Porangan							42.6
								Heretaungan							45.7
		Ypresian													47.8
													Casamayoran		47.9 *
								Mangaorapan							48.9
								Waipawan							52
	Paleocene	Thanetian						Teurian					Riochican		56
													Itaboraian		56.9 *
													Peligran		58.9 *
		Selandian													59.2
		Danian													61.6
		Danian											Tiupampan		62.4 *
Cretaceous	Late Cretaceous	Maastrichtian		Senonian	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		Gallic		Motuan		100.5
						Urutawan		103.3
					Taitai	Korangan		108.4
		Aptian				Korangan		113
		Aptian						117.5
		Barremian						121.4
		Hauterivian		Neocomian				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						Dorashamian	251.902
	Lopingian	Wuchiapingian						Longtanian †	Dzhulfian	254.14
	Guadalupian	Capitanian							Midian	259.51
		Wordian							Midian	264.28
		Wordian							Murgabian	266.2 *
		Roadian							Murgabian	266.9
	Cisuralian	Kungurian							Kubergandian	273.01
		Kungurian							Bolorian	279.8
		Artinskian							Bolorian	283.5
		Artinskian							Yakhtashian	286
		Sakmarian							Sakmarian	290.1
		Asselian							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		Cayugan				419.2
	Pridoli		Niagaran				422.5 *
	Ludlow	Ludfordian					423
	Ludlow	Gorstian					425.6
	Wenlock	Homerian					Lockportian			427.4
	Wenlock	Sheinwoodian								430.5
	Llandovery	Telychian					Ontarian			433.4
		Aeronian								438.5
										Alexandrian	438.7 *
			Medinan				Clinton				440.1 *
											440.7 *
		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						477.7
						Varangu						481.3 *
						Pakerort						482.2 *
Cambrian	Furongian	Stage 10				Pakerort						485.4
												486.3 *
												486.5
		Jiangshanian										489.5
		Paibian						494
	Miaolingian	Guzhangian						Series 3 †				497
		Drumian										500.5
		Wuliuan										Stage 5 †	504.5
															509