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 Czechoslovakia	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			Srbsko	Geneseean/Taghanican/Tioughniogan	Cazenovian	Givetian	382.7
	Middle Devonian	Eifelian			Chotec	Southwoodian	Cazenovian	Couvinien	387.7
	Early Devonian	Emsian			Daleje/Zlichovian	Sawkillian/Deer Parkian	Helderbergian		393.3
		Pragian			Pragian				407.6
		Pragian			Pragian			Coblencien	408.2 *
		Lochkovian			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