PBDB Interval

International Chronostratigraphic Timescale

The interval definitions in this timescale are derived from the following sources:

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
J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
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

There are 59 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 126699 collections

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International Chronostratigraphic Timescale			Central Paratethys Stages	Permian-Jurassic of New Zealand		Ordovician of Australia	Permian of the Pamirs	Neogene Mammal Ages of China	Carboniferous Subepochs	Obsolete Names for ICS Units
Quaternary	Pleistocene	Late Pleistocene						Nihewanian			0.0117
		Chibanian									0.129
		Calabrian									0.774
		Gelasian									1.8
Neogene	Pliocene	Piacenzian						Yushean		Tertiary †	2.58
		Zanclean						Yushean			3.6
		Zanclean						Baodean			4.9
	Miocene	Messinian									5.333
		Tortonian	Pannonian								7.246
		Tortonian	Pannonian					Tunggurian			11.1
		Serravallian	Sarmatian								11.63
		Serravallian	Badenian								12.8 *
		Langhian						Shanwangian			13.82
		Burdigalian						Shanwangian			15.98
		Burdigalian						Xiejiaan			16.9
		Aquitanian						Xiejiaan			20.44
Paleogene	Oligocene	Chattian									23.03
	Oligocene	Rupelian									27.82
	Eocene	Priabonian									33.9
		Bartonian									37.71
		Lutetian									41.2
		Ypresian									47.8
	Paleocene	Thanetian									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		Oteke	Puaroan						145
		Kimmeridgian		Oteke	Puaroan						149.2
				Kawhia	Ohauan						150
					Heterian						154.5
		Oxfordian									154.8
	Middle Jurassic	Callovian									161.5
		Callovian			Temaikan						164.3
		Bathonian									165.3
		Bajocian									168.2
		Aalenian									170.9
	Early Jurassic	Toarcian									174.7
		Toarcian		Herangi	Ururoan						176
		Pliensbachian			Ururoan						184.2
		Pliensbachian			Aratauran						188.9
		Sinemurian									192.9
		Hettangian									199.5
Triassic	Late Triassic	Rhaetian		Balfour	Otapirian						201.4
		Norian			Warepan						208.5
					Otamitan						217
					Oretian						221
		Carnian			Oretian						227
		Carnian		Gore	Kaihikuan						227.5
	Middle Triassic	Ladinian			Kaihikuan						237
		Ladinian			Etalian						238
		Anisian			Etalian						242
		Anisian			Malakovian						246
	Early Triassic	Olenekian			Malakovian						247.2
		Olenekian			Nelsonian	249
		Induan			Nelsonian	251.2
		Induan		DUrville	Makarewan	251.5
Permian	Lopingian	Changhsingian			Makarewan	Dorashamian	251.902
		Changhsingian			Waiitian	Dorashamian	253.2
		Wuchiapingian			Waiitian	Dzhulfian	Longtanian †		254.14
		Wuchiapingian			Puruhauan	Dzhulfian	Longtanian †		254.2
	Guadalupian	Capitanian		Aparima	Flettian	Midian			259.51
		Wordian			Flettian				264.28
					Barettian				266
						Murgabian			266.2 *
		Roadian				Murgabian			266.9
	Cisuralian	Kungurian	Kubergandian			273.01
			Kubergandian		Mangapirian	276
			Bolorian			279.8
		Artinskian				283.5
					Telfordian	285
			Yakhtashian		Telfordian	286
			Yakhtashian			288.5
		Sakmarian	Sakmarian			290.1
		Asselian	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						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						Bolindian	443.8
		Katian						Bolindian	445.2
								Eastonian	449 *
								Gisbornian	452 *
		Sandbian						Gisbornian	453
	Middle Ordovician	Darriwilian						Darriwilian	458.4
		Dapingian						Yapeenian	467.3
		Dapingian						Castlemainian	468.5 *
	Early Ordovician	Floian						Chewtonian	470
								Bendigonian	471.8 *
								Lancefieldian	473.5 *
		Tremadocian						Lancefieldian	477.7
		Tremadocian						Warendian	482.8 *
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