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
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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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			Central Paratethys Stages	Devonian of France	Carboniferous of China	Cenozoic Subepochs	Cambrian of Australia	Mammal Paleogene Zones
Quaternary	Pleistocene	Late Pleistocene							Late Pleistocene				0.0117
		Chibanian							Middle Pleistocene				0.129
		Calabrian							Early Pleistocene				0.774
		Gelasian							Early Pleistocene				1.8
Neogene	Pliocene	Piacenzian	Tertiary †						Late Pliocene				2.58
	Pliocene	Zanclean							Early Pliocene				3.6
	Miocene	Messinian							Late Miocene				5.333
		Tortonian				Pannonian			Late Miocene				7.246
		Serravallian				Sarmatian			Middle Miocene				11.63
		Serravallian				Badenian							12.8 *
		Langhian											13.82
		Burdigalian							Early Miocene				15.98
		Aquitanian							Early Miocene				20.44
Paleogene	Oligocene	Chattian							Late Oligocene		MP 30/MP 29/MP 28/MP 27/MP 26	MP 25	23.03
	Oligocene	Rupelian							Early Oligocene		MP 24/MP 23/MP 22/MP 21	MP 25	27.82
	Eocene	Priabonian							Late Eocene		MP 20/MP 19/MP 18/MP 17B/MP 17A		33.9
		Bartonian							Middle Eocene		MP 16		37.71
		Lutetian							Middle Eocene		MP 15/MP 14/MP 13/MP 12/MP 11		41.2
		Ypresian							Early Eocene		MP 10/MP 8 + 9/MP 7		47.8
	Paleocene	Thanetian							Late Paleocene		MP 6	MP 1 - 5	56
		Selandian							Middle Paleocene				59.2
		Danian							Early Paleocene				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
		Gzhelian						Xiaodushanian					300 *
		Kasimovian						Xiaodushanian					303.7
		Kasimovian			Dalaun		305.8 *
		Moscovian					307
		Bashkirian					315.2
					Huashibanian		318.5 *
					Lousuan		321.2 *
	Mississippian	Serpukhovian			Dewunian		323.2
		Serpukhovian			Shangsian		330.8 *
		Visean			Shangsian		330.9
		Visean			Jiusian		335 *
		Tournaisian			Tangbagouan		346.7
Devonian	Late Devonian	Famennian			Famennian		358.9
	Late Devonian	Frasnian			Frasnian		372.2
	Middle Devonian	Givetian			Givetian		382.7
	Middle Devonian	Eifelian			Couvinien		387.7
	Early Devonian	Emsian					393.3
		Pragian					407.6
		Pragian			Coblencien		408.2 *
		Lochkovian			Gedinnine		410.8
Silurian	Pridoli						419.2
	Ludlow	Ludfordian					423
	Ludlow	Gorstian					425.6
	Wenlock	Homerian					Gleedonian	427.4
		Homerian	Whitwellian				429.7 *
		Sheinwoodian					430.5
	Llandovery	Telychian					433.4
		Aeronian					438.5
		Rhuddanian					440.8
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					Ungurian	477.7
Cambrian	Furongian	Stage 10					Datsonian	Batyrbaian	485.4
		Stage 10					Payntonian		486.8 *
		Jiangshanian					Iverian		489.5
								Aksaian	490.7 *
								Sakian	492.2 *
		Paibian					Idamean	Sakian	494
	Miaolingian	Guzhangian					Series 3 †	Mindyallan	Ayusokkanian	497
								Boomerangian	Ayusokkanian	499
								Boomerangian		499.5
		Drumian						Undillan	Zhanaarykian	500.5
		Drumian						Floran	Tuesaian	503
		Wuliuan		Stage 5 †				Templetonian	Tuesaian	504.5
								Templetonian		505.3
								Ordian		507.8 *
	Series 2	Stage 4								509
									Toyonian	510 *
									Toyonian	510.8 *
									Botomian	512.5 *
		Stage 3							Botomian	514
		Stage 3							Atdabanian	515.6 *
	Terreneuvian	Stage 2							Tommotian	521
													525.5