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
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
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 Siberia			Cambrian of West Avalonia	Central Paratethys Stages	Neogene Mammal Ages of China	Cenozoic Subepochs	Cambrian Epochs	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 †															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			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		Batyrbaian				Tavgian †	Ketyan †/Yurakian	Late Cambrian					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 †				Ayusokkanian							Middle Cambrian	497
								Ayusokkanian								Arcadian	498.4
								Mayan/Menevian									499.5
		Drumian						Mayan/Menevian									500.5
		Wuliuan						Stage 5 †									Amgan/Solvan	504.5
	Series 2	Stage 4													Branchian	Early Cambrian	Amgan/Solvan	509
									Toyonian								Lenian †	510 *
									Botomian									512.5 *
		Stage 3							Botomian									514
									Atdabanian									515.6 *
									Atdabanian						Placentian			517.1
	Terreneuvian	Stage 2							Tommotian									521
		Stage 2							Nemakit-Daldynian									525.5
		Fortunian							Nemakit-Daldynian								Manykaian †	529
																			538.8