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
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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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			Neogene Mammal Ages of China	Ordovician of North America						Silurian of the Baltic	Ordovician of the Baltic
Quaternary	Pleistocene	Late Pleistocene				Nihewanian										0.0117
		Chibanian														0.129
		Calabrian														0.774
		Gelasian														1.8
Neogene	Pliocene	Piacenzian	Tertiary †			Yushean										2.58
		Zanclean				Yushean										3.6
		Zanclean				Baodean										4.9
	Miocene	Messinian														5.333
		Tortonian														7.246
		Tortonian				Tunggurian										11.1
		Serravallian				Tunggurian										11.63
		Langhian				Shanwangian										13.82
		Burdigalian				Shanwangian										15.98
		Burdigalian				Xiejiaan										16.9
		Aquitanian				Xiejiaan										20.44
Paleogene	Oligocene	Chattian														23.03
	Oligocene	Rupelian														27.82
	Eocene	Priabonian														33.9
		Bartonian														37.71
		Lutetian														41.2
		Ypresian														47.8
	Paleocene	Thanetian														56
		Selandian														59.2
		Danian														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				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	438.5		Adavere
		Aeronian	Raikkula		439.4 *
		Rhuddanian	Raikkula		440.8
		Rhuddanian	Juuru		441.4 *
Ordovician	Late Ordovician	Hirnantian	Cincinnatian		Gamachian		Harju	Porkuni	443.8
		Katian			Gamachian			Pirgu	445.2
					Richmondian			Pirgu	446 *
					Richmondian			Vormsi	449.6 *
					Maysvillian			Vormsi	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
					Maysvillian			Nabala		Johvi †	450 *
					Edenian			Nabala			450.4 *
					Edenian		Viru	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			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