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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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					Cretaceous Subepochs	Cenozoic Subepochs
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												7.246
		Tortonian				Tunggurian								11.1
		Serravallian				Tunggurian							Middle Miocene	11.63
		Langhian				Shanwangian							Middle Miocene	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										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												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	443.8
		Katian				Gamachian	445.2
						Richmondian	446 *
			Maysvillian			Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
			Edenian				450.4 *
			Mohawkian		Chatfieldian		451.1 *
		Sandbian			Chatfieldian		453
					Turinian		453.7 *
			Whiterockian			Canadian †	Chazyan †/Marmor	457 *
	Middle Ordovician	Darriwilian						458.4
		Dapingian						467.3
		Dapingian			Rangerian			469.1 *
	Early Ordovician	Floian	Ibexian		Blackhillsian		Jeffersonian †	Cassinian †	470
		Floian			Tulean				473.9 *
		Tremadocian			Tulean				477.7
					Stairsian				480.3 *
					Skullrockian			Demingian †	482 *
Cambrian	Furongian	Stage 10			Skullrockian				Late Cambrian	485.4
		Stage 10								487.5
		Jiangshanian								489.5
		Paibian								494
	Miaolingian	Guzhangian							Series 3 †	Middle Cambrian	497
		Drumian									500.5
		Wuliuan		Stage 5 †							504.5
	Series 2	Stage 4								Early Cambrian	509
	Series 2	Stage 3									514
	Terreneuvian	Stage 2									521
	Terreneuvian	Fortunian									529
														538.8