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			Permian of Western Europe	Central Paratethys Stages	Neogene Mammal Ages of China	Cenozoic Subepochs	Cambrian Epochs	Cambrian of Siberia			Ordovician of North America
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 †		Zechstein												254.14
	Guadalupian	Capitanian				Rotliegendes												259.51
		Wordian																264.28
		Roadian																266.9
	Cisuralian	Kungurian																273.01
		Artinskian				Autunian												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				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					Gamachian			Pirgu	445.2
							Richmondian			Pirgu	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		Late Cambrian					Batyrbaian	Tavgian †	Ketyan †/Yurakian					485.4
																486.3 *
																486.5
																487.5
		Jiangshanian														489.5
									Aksaian							490.7 *
									Sakian							492.2 *
		Paibian			494
		Paibian			Ensyan †/Maduan/Nganasanian						494.7 *
	Miaolingian	Guzhangian		Series 3 †	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							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