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
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. 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
F. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) 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			Ordovician of China			Devonian of Germany	Ordovician of the Baltic				Permian Subages of Germany	Ordovician of North America						European Faunal Units	European Faunal Zones
Quaternary	Pleistocene	Gelasian																				MN 17	1.8
Neogene	Pliocene	Piacenzian	Tertiary †																		Villanyian	MN 16	2.58
																					Ruscinian	MN 16	3.1 *
																						MN 15	3.2
		Zanclean																				MN 15	3.6
																						MN 14	4.2
																						MN 13	4.9
	Miocene	Messinian																			Turolian	MN 13	5.333
		Tortonian																				MN 12	7.246
																						MN 11	7.75
																					Vallesian	MN 10	8.7
																						MN 9	9.7
																						MN 7 + 8	11.1
		Serravallian																			Astaracian	MN 7 + 8	11.63
		Serravallian																				MN 6	12.8 *
		Langhian																				MN 5	13.82
		Burdigalian																			Orleanian	MN 4	15.98
																					Orleanian	MN 3	16.9
																					Agenian	MN 2	20
		Aquitanian																				MN 2	20.44
		Aquitanian																				MN 1	22.4
Paleogene	Oligocene	Chattian																					23.03
	Oligocene	Rupelian																					27.82
	Eocene	Priabonian																					33.9
		Bartonian																					37.71
		Lutetian																					41.2
		Ypresian																					47.8
	Paleocene	Thanetian																					56
		Selandian																					59.2
		Danian																					61.6
Cretaceous	Late Cretaceous	Maastrichtian																					66
		Campanian																					72.1
		Santonian																					83.6
		Coniacian																					86.3
		Turonian																					89.8
		Cenomanian																					93.9
	Early Cretaceous	Albian																					100.5
		Aptian																					113
		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												Buntsandstein									251.902
	Lopingian	Wuchiapingian		Longtanian †										Buntsandstein									254.14
	Guadalupian	Capitanian												Ohre/Aller									259.51
		Wordian												Leine									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				Wocklum/Dasberg/Hemberg/Nehden	358.9
	Late Devonian	Frasnian				Adorf	372.2
	Middle Devonian	Givetian				Givetian	382.7
	Middle Devonian	Eifelian				Eifelian	387.7
	Early Devonian	Emsian				Emsian	393.3
		Pragian				Siegen	407.6
		Lochkovian				Gedinnine	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						Hirnantian	Xiaoxita †/Shikou	Wufeng †	Harju	Porkuni	Cincinnatian	Gamachian	443.8
		Katian						Chientangkiangian				Pirgu		Gamachian	445.2
			Richmondian					Chientangkiangian						446 *
								Neichianshanian/Hanjiang						449.5
												Vormsi		449.6 *
			Maysvillian									Vormsi		Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
			Maysvillian									Nabala			Johvi †	450 *
			Edenian									Nabala				450.4 *
			Edenian								Viru	Rakvere				450.6 *
			Mohawkian									Rakvere	Chatfieldian			451.1 *
												Oandu				452 *
		Sandbian										Keila			Idavere †	453
												Keila	Turinian			453.7 *
												Haljala				453.9
												Kukruse				456.4 *
			Whiterockian									Kukruse		Canadian †		Chazyan †/Marmor	457 *
												Uhaku			Aluoja †		457.5 *
	Middle Ordovician	Darriwilian						Darriwilian	Guniu †/Hulo			Uhaku					458.4
												Lasnamagi					458.9 *
												Aseri					460.4 *
											Oeland	Kunda					462.9 *
															Valaste †/Hunderum		464.3 *
									Hunjiang †	Dawan †/Daobaowan/Ningkuo							466.3 *
												Volkhov					Langevoja †/Vaana/Saka	467.1 *
		Dapingian						Dapingian										467.3
													Rangerian					469.1 *
												Billingen	Rangerian					469.3 *
	Early Ordovician	Floian	Yiyangian					Ibexian					Blackhillsian			Jeffersonian †		Cassinian †	470
															Latorp †				470.1 *
												Hunneberg							473.7 *
													Tulean						473.9 *
		Tremadocian	Xinchangian																477.7
										Lianghekou †									477.9 *
													Stairsian						480.3 *
				Varangu								481.3 *	Stairsian
				Varangu								Skullrockian	Demingian †					482 *
				Pakerort	482.2 *								Demingian †
Cambrian	Furongian	Stage 10		Pakerort												Datsonian		485.4
																		486.3 *
																		486.5
																Payntonian		486.8 *
																Payntonian		487.5
		Jiangshanian														Iverian		489.5
		Paibian														Idamean		494
	Miaolingian	Guzhangian														Series 3 †		Mindyallan	497
		Guzhangian																Boomerangian	499
		Drumian																Undillan	500.5
		Drumian																Floran	503
		Wuliuan																Stage 5 †	Templetonian	504.5
		Wuliuan																Stage 5 †	Ordian	507.8 *
	Series 2	Stage 4																	Ordian	509
																							510.8 *