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
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
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

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			Devonian of Czechoslovakia	Cretaceous-Cenozoic of New Zealand		Cenozoic Subepochs	Permian of the Pamirs	Ordovician of China			Cambrian of Britain		Ordovician of the Baltic				European Faunal Units
Quaternary	Holocene	Meghalayan					Wanganui	Haweran													0
		Northgrippian																			0.0042
		Greenlandian																			0.0082
	Pleistocene	Late Pleistocene							Late Pleistocene												0.0117
		Chibanian							Middle Pleistocene												0.129
		Chibanian						Castlecliffian	Middle Pleistocene												0.34
		Calabrian						Castlecliffian	Early Pleistocene												0.774
		Calabrian						Nukumaruan													1.63
		Gelasian						Nukumaruan													1.8
		Gelasian						Mangapanian													2.4
Neogene	Pliocene	Piacenzian	Tertiary †					Mangapanian	Late Pliocene											Villanyian	2.58
								Waipipian												Villanyian	3
																				Ruscinian	3.1 *
		Zanclean							Early Pliocene												3.6
		Zanclean						Opoitian	Early Pliocene												3.7
	Miocene	Messinian					Taranaki	Kapitean	Late Miocene											Turolian	5.333
		Messinian						Tongaporutuan													7.2
		Tortonian																			7.246
																				Vallesian	8.7
							Southland	Waiauan												Vallesian	11.04
		Serravallian						Waiauan	Middle Miocene											Astaracian	11.63
		Serravallian						Lillburnian													13.05
		Langhian						Lillburnian													13.82
								Clifdenian													15.1
							Pareora	Altonian													15.9
		Burdigalian						Altonian	Early Miocene											Orleanian	15.98
								Otaian												Orleanian	18.7
																				Agenian	20
		Aquitanian																			20.44
		Aquitanian					Landon	Waitakian													21.7
Paleogene	Oligocene	Chattian						Waitakian	Late Oligocene												23.03
								Duntroonian													25.2
								Whaingaroan													27.3
		Rupelian							Early Oligocene												27.82
	Eocene	Priabonian							Late Eocene												33.9
							Arnold	Runangan													34.6
								Kaiatan													36.7
		Bartonian						Kaiatan	Middle Eocene												37.71
		Bartonian						Bortonian													39.1
		Lutetian						Bortonian													41.2
							Dannevirke	Porangan													42.6
								Heretaungan													45.7
		Ypresian						Heretaungan	Early Eocene												47.8
								Mangaorapan													48.9
								Waipawan													52
	Paleocene	Thanetian						Teurian	Late Paleocene												56
		Selandian							Middle Paleocene												59.2
		Danian							Early Paleocene												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			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					Srbsko			382.7
	Middle Devonian	Eifelian					Chotec			387.7
	Early Devonian	Emsian					Daleje/Zlichovian			393.3
		Pragian					Pragian			407.6
		Lochkovian					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					Hirnantian		Xiaoxita †/Shikou	Wufeng †	Harju	Porkuni	Cincinnatian	Gamachian	443.8
		Katian					Chientangkiangian					Pirgu		Gamachian	445.2
							Chientangkiangian							Richmondian	446 *
							Neichianshanian/Hanjiang								449.5
												Vormsi			449.6 *
												Vormsi		Maysvillian	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
												Nabala		Maysvillian		Johvi †	450 *
								Edenian				Nabala		450.4 *
								Edenian			Viru	Rakvere		450.6 *
								Mohawkian				Rakvere	Chatfieldian	451.1 *
												Oandu		452 *
		Sandbian										Keila		Idavere †		453
				Turinian								Keila	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 *
								Rangerian				Billingen					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 *
								Stairsian		Varangu		481.3 *
								Skullrockian		Varangu		Demingian †					482 *
										Pakerort		Demingian †					482.2 *
Cambrian	Furongian	Stage 10								Pakerort		Merioneth	Dolgellian/Trempealeauan						485.4
																			486.3 *
																			486.5
																			487.5
													Festiniogian						489.2 *
		Jiangshanian				489.5							Festiniogian
		Jiangshanian				Maentwrogian							493.1 *
		Paibian				Maentwrogian							494
	Miaolingian	Guzhangian				Series 3 †						St Davids							497
		Drumian																	500.5
		Wuliuan																	Stage 5 †	504.5
	Series 2	Stage 4																	Caerfai	509
	Series 2	Stage 3																		514
	Terreneuvian	Stage 2																		521
	Terreneuvian	Fortunian																		529
																					538.8