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. 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
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			South American Land Mammal Ages		Devonian Subages						Devonian of Eastern North America
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													7.246
						Chasicoan									7.9 *
						Mayoan									9.9 *
						Laventan									10.9 *
		Serravallian				Laventan									11.63
		Serravallian				Colloncuran									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													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			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			Conewangan/Conneautan/Canadaway	358.9
					Middle Famennian				365.3 *
					Early Famennian				368.5 *
		Frasnian			Late Frasnian			West Fallsian/Sonyean	372.2
					Middle Frasnian				375.4 *
					Early Frasnian				379.3 *
	Middle Devonian	Givetian			Late Givetian			Geneseean/Taghanican/Tioughniogan	Cazenovian	382.7
					Middle Givetian					383.7 *
					Early Givetian					385.9 *
		Eifelian			Late Eifelian			Southwoodian		387.7
		Eifelian			Early Eifelian			Southwoodian		390.3 *
	Early Devonian	Emsian			Late Emsian			Sawkillian/Deer Parkian	Helderbergian	393.3
		Emsian			Early Emsian			Sawkillian/Deer Parkian		398.3 *
		Pragian			Pragian					407.6
		Lochkovian			Late Lochkovian					410.8
					Middle Lochkovian					412.8 *
					Early Lochkovian					415.6 *
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							485.4
		Stage 10											487.5
		Jiangshanian											489.5
		Paibian											494
	Miaolingian	Guzhangian											Series 3 †	497
		Drumian												500.5
		Wuliuan		Stage 5 †										504.5
															509