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
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
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
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

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	Silurian of the Baltic	Carboniferous Subepochs	South American Land Mammal Ages		Central Paratethys Stages	Ordovician of the Baltic				Devonian Subages
Quaternary	Pleistocene	Late Pleistocene							Lujanian								0.0117
		Chibanian							Lujanian								0.129
		Chibanian							Ensenadan								0.3 *
		Calabrian							Ensenadan								0.774
		Calabrian							Sanandresian	Uquian †							1.7 *
		Gelasian							Sanandresian								1.8
Neogene	Pliocene	Piacenzian	Tertiary †						Vorohuean								2.58
		Piacenzian							Chapadmalalan								2.9 *
		Zanclean							Chapadmalalan								3.6
									Montehermosan								3.7 *
									Huayquerian								4.9 *
	Miocene	Messinian															5.333
		Tortonian									Pannonian						7.246
									Chasicoan								7.9 *
									Mayoan								9.9 *
									Laventan								10.9 *
		Serravallian									Sarmatian						11.63
											Badenian						12.8 *
									Colloncuran		Badenian						13.7 *
		Langhian							Colloncuran								13.82
		Langhian							Friasian								15.4 *
		Burdigalian							Friasian								15.98
									Santacrucian								16.2 *
									Colhuehuapian								17.4 *
		Aquitanian							Colhuehuapian								20.44
		Aquitanian							Deseadan								20.9 *
Paleogene	Oligocene	Chattian															23.03
		Rupelian															27.82
		Rupelian							Tinguirirican								28.9 *
	Eocene	Priabonian							Tinguirirican								33.9
		Priabonian							Divisaderan								35.9 *
		Bartonian															37.71
		Lutetian															41.2
		Lutetian							Mustersan								41.9 *
		Ypresian							Mustersan								47.8
		Ypresian							Casamayoran								47.9 *
	Paleocene	Thanetian							Riochican								56
									Itaboraian								56.9 *
									Peligran								58.9 *
		Selandian															59.2
		Danian															61.6
		Danian							Tiupampan								62.4 *
Cretaceous	Late Cretaceous	Maastrichtian				Senonian											66
		Campanian															72.1
		Santonian															83.6
		Coniacian															86.3
		Turonian															89.8
		Cenomanian															93.9
	Early Cretaceous	Albian				Gallic											100.5
		Aptian															113
		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		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			Late Pennsylvanian		298.9
		Kasimovian			Late Pennsylvanian		303.7
		Moscovian			Middle Pennsylvanian		307
		Bashkirian			Early Pennsylvanian		315.2
	Mississippian	Serpukhovian			Late Mississippian		323.2
		Visean			Middle Mississippian		330.9
		Tournaisian			Early Mississippian		346.7
Devonian	Late Devonian	Famennian					Late Famennian	358.9
							Middle Famennian	365.3 *
							Early Famennian	368.5 *
		Frasnian					Late Frasnian	372.2
							Middle Frasnian	375.4 *
							Early Frasnian	379.3 *
	Middle Devonian	Givetian					Late Givetian	382.7
							Middle Givetian	383.7 *
							Early Givetian	385.9 *
		Eifelian					Late Eifelian	387.7
		Eifelian					Early Eifelian	390.3 *
	Early Devonian	Emsian					Late Emsian	393.3
		Emsian					Early Emsian	398.3 *
		Pragian					Pragian	407.6
		Lochkovian					Late Lochkovian	410.8
							Middle Lochkovian	412.8 *
							Early Lochkovian	415.6 *
Silurian	Pridoli						Ohesaare			419.2
	Pridoli		Kaugetuma				421.7 *
	Ludlow	Ludfordian	Kuressaare				423
		Ludfordian	Paadla				423.4 *
		Gorstian	Paadla				425.6
	Wenlock	Homerian	Rootsikula				427.4
		Homerian	Jaagarahu				429.2 *
		Sheinwoodian	Jaagarahu				430.5
		Sheinwoodian	Jaani				431.8 *
	Llandovery	Telychian	Jaani				433.4
		Telychian	Adavere				434 *
		Aeronian	Adavere				438.5
		Aeronian	Raikkula				439.4 *
		Rhuddanian	Raikkula			440.8
		Rhuddanian	Juuru			441.4 *
Ordovician	Late Ordovician	Hirnantian				Harju	Porkuni		Cincinnatian	Gamachian	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	Rakvere			Edenian			450.6 *
							Rakvere		Mohawkian	Chatfieldian			451.1 *
							Oandu						452 *
		Sandbian					Keila					Idavere †	453
							Keila			Turinian			453.7 *
							Haljala						453.9
							Kukruse						456.4 *
							Kukruse		Whiterockian		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 *
						Billingen				Rangerian				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 *
						Varangu				Stairsian					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