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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 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
A. G. Sennikov and V. K. Golubev. 2006. Vyazniki Biotic Assemblage of the Terminal Permian. Paleontological Journal 40(suppl. 4):S475-S481 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			Devonian of Eastern North America		Silurian of the Baltic	Permian Subages of Germany	Paleogene Mammal Ages of Asia		Central Paratethys Stages	Permo-Triassic Subages of Eastern Europe	Obsolete Carboniferous Ages of China
Neogene	Pliocene	Piacenzian	Tertiary †												2.58
	Pliocene	Zanclean													3.6
	Miocene	Messinian													5.333
		Tortonian										Pannonian			7.246
		Serravallian										Sarmatian			11.63
		Serravallian										Badenian			12.8 *
		Langhian													13.82
		Burdigalian													15.98
		Aquitanian													20.44
Paleogene	Oligocene	Chattian								Tabenbulakian	Hsandagolian				23.03
	Oligocene	Rupelian								Kekeamuan	Hsandagolian				27.82
	Eocene	Priabonian								Houldjinian/Ergilian/Ulangochuian					33.9
		Bartonian								Sharamurunian/Irdinmanhan/Arshantan					37.71
		Lutetian													41.2
		Ypresian									Bumbanian				47.8
	Paleocene	Thanetian								Gashatan					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											Vokhmian		247.2
	Early Triassic	Induan											Vokhmian		251.2
Permian	Lopingian	Changhsingian							Buntsandstein						251.902
	Lopingian	Wuchiapingian		Longtanian †					Buntsandstein				Late Vyatkian/Early Vyatkian		254.14
	Guadalupian	Capitanian							Ohre/Aller				Late Severodvinian/Early Severodvinian		259.51
		Wordian							Leine				Late Urzhumian/Early Urzhumian		264.28
		Roadian											Late Kazanian/Early Kazanian		266.9
	Cisuralian	Kungurian													273.01
		Artinskian													283.5
		Sakmarian													290.1
		Asselian													293.52
Carboniferous	Pennsylvanian	Gzhelian												Mapingian †	298.9
		Kasimovian												Mapingian †	303.7
		Kasimovian													305.9
		Moscovian													307
		Bashkirian													315.2
	Mississippian	Serpukhovian													323.2
		Visean													330.9
		Tournaisian			346.7
Devonian	Late Devonian	Famennian			Conewangan/Conneautan/Canadaway	Famennian	358.9
	Late Devonian	Frasnian			West Fallsian/Sonyean	Frasnian	372.2
	Middle Devonian	Givetian			Geneseean/Taghanican/Tioughniogan	Cazenovian	Givetian	382.7
	Middle Devonian	Eifelian			Southwoodian	Cazenovian	Couvinien	387.7
	Early Devonian	Emsian			Sawkillian/Deer Parkian	Helderbergian		393.3
		Pragian						407.6
		Pragian					Coblencien	408.2 *
		Lochkovian					Gedinnine	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	433.4				Jaani
		Telychian	Adavere				434 *
		Aeronian	Adavere				438.5
		Aeronian	Raikkula				439.4 *
		Rhuddanian	Raikkula				440.8
		Rhuddanian	Juuru				441.4 *
Ordovician	Late Ordovician	Hirnantian					443.8
		Katian					445.2
		Sandbian					453
	Middle Ordovician	Darriwilian					458.4
	Middle Ordovician	Dapingian					467.3
	Early Ordovician	Floian					470
	Early Ordovician	Tremadocian					477.7
Cambrian	Furongian	Stage 10					485.4
		Jiangshanian					489.5
		Paibian					494
	Miaolingian	Guzhangian					Series 3 †			497
		Drumian								500.5
		Wuliuan		Stage 5 †						504.5
															509