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
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. 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			Cambrian of Britain		Permian of North America		Central Paratethys Stages	Neogene Mammal Ages of China	Cenozoic Subepochs	Cambrian Epochs	Cambrian of Siberia
Quaternary	Pleistocene	Late Pleistocene									Nihewanian	Late Pleistocene					0.0117
		Chibanian										Middle Pleistocene					0.129
		Calabrian										Early Pleistocene					0.774
		Gelasian										Early Pleistocene					1.8
Neogene	Pliocene	Piacenzian	Tertiary †								Yushean	Late Pliocene					2.58
		Zanclean									Yushean	Early Pliocene					3.6
		Zanclean									Baodean	Early Pliocene					4.9
	Miocene	Messinian										Late Miocene					5.333
		Tortonian								Pannonian							7.246
		Tortonian								Pannonian	Tunggurian						11.1
		Serravallian								Sarmatian		Middle Miocene					11.63
		Serravallian								Badenian							12.8 *
		Langhian									Shanwangian						13.82
		Burdigalian									Shanwangian	Early Miocene					15.98
		Burdigalian									Xiejiaan						16.9
		Aquitanian									Xiejiaan						20.44
Paleogene	Oligocene	Chattian										Late Oligocene					23.03
	Oligocene	Rupelian										Early Oligocene					27.82
	Eocene	Priabonian										Late Eocene					33.9
		Bartonian										Middle Eocene					37.71
		Lutetian										Middle Eocene					41.2
		Ypresian										Early Eocene					47.8
	Paleocene	Thanetian										Late Paleocene					56
		Selandian										Middle Paleocene					59.2
		Danian										Early Paleocene					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															251.902
	Lopingian	Wuchiapingian		Longtanian †													254.14
	Guadalupian	Capitanian						Capitanian									259.51
		Wordian						Wordian									264.28
		Roadian						Roadian									266.9
	Cisuralian	Kungurian						Leonardian	Cathedralian								273.01
		Kungurian							Hessian								281.9 *
		Artinskian							Hessian								283.5
		Artinskian						Wolfcampian	Lenoxian								286.1 *
		Sakmarian			290.1				Lenoxian
		Asselian			Nealian	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	Harju	Porkuni	443.8
		Katian	Pirgu					Gamachian		445.2
			Pirgu					Richmondian		446 *
			Vormsi					Richmondian		449.6 *
			Vormsi					Maysvillian		Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
			Nabala					Maysvillian			Johvi †	450 *
			Nabala					Edenian				450.4 *
			Viru					Edenian	Rakvere			450.6 *
							Mohawkian	Chatfieldian	Rakvere			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							Uhaku				458.4
									Lasnamagi				458.9 *
									Aseri				460.4 *
			Oeland						Kunda				462.9 *
									Kunda		Valaste †/Hunderum		464.3 *
									Volkhov				Langevoja †/Vaana/Saka	467.1 *
		Dapingian												467.3
								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							477.7
								Stairsian							480.3 *
								Stairsian	Varangu						481.3 *
								Skullrockian	Varangu					Demingian †	482 *
				Pakerort					482.2 *
									Mansian †						483.55 *
Cambrian	Furongian	Stage 10							Merioneth	Dolgellian/Trempealeauan	Late Cambrian	Batyrbaian		Tavgian †	Ketyan †/Yurakian	485.4
																486.3 *
																486.5
																487.5
										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 †	St Davids				Middle Cambrian	Ayusokkanian				497
		Guzhangian									Mayan/Menevian				499.5
		Drumian									Mayan/Menevian				500.5
		Wuliuan									Stage 5 †				Amgan/Solvan	504.5
	Series 2	Stage 4								Caerfai	Early Cambrian				Amgan/Solvan	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