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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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. D. Barnosky, M. Holmes, R. Kirchholtes, E. Lindsey, K.C. Maguire, A.W. Poust, M.A. Stegner, J. Sunseri, B. Swartz, J. Swift, N.A. Villavicencio and G. Wogan. 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review I(3):225-242 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.

This timescale is used in the definition of 126691 collections

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International Chronostratigraphic Timescale			Devonian Subages	Central Paratethys Stages	Ten Million Year Bins	North American Land Mammal Ages
Quaternary	Holocene	Meghalayan			Cenozoic 6	Saintaugustinean	0
		Meghalayan				Santarosean	0.0004
		Northgrippian					0.0042
		Greenlandian					0.0082
	Pleistocene	Late Pleistocene					0.0117
		Late Pleistocene				Rancholabrean	0.014
		Chibanian				Rancholabrean	0.129
		Chibanian				Irvingtonian	0.21
		Calabrian				Irvingtonian	0.774
		Calabrian				Blancan	1.4
		Gelasian					1.8
Neogene	Pliocene	Piacenzian					2.58
		Zanclean					3.6
		Zanclean				Hemphillian	4.7
	Miocene	Messinian					5.333
		Tortonian		Pannonian			7.246
		Tortonian		Pannonian		Clarendonian	9.4
		Serravallian		Sarmatian	Cenozoic 5	Clarendonian	11.63
				Sarmatian		Barstovian	12.5
				Badenian			12.8 *
		Langhian					13.82
		Burdigalian					15.98
						Hemingfordian	16.3
						Arikareean	18.5
		Aquitanian					20.44
Paleogene	Oligocene	Chattian			Cenozoic 4		23.03
		Rupelian					27.82
						Whitneyan	29.5
						Orellan	31.8
	Eocene	Priabonian			Cenozoic 3	Chadronian	33.9
		Priabonian				Duchesnean	37
		Bartonian				Duchesnean	37.71
		Bartonian				Uintan	39.7
		Lutetian			Cenozoic 2	Uintan	41.2
		Lutetian				Bridgerian	46.2
		Ypresian				Bridgerian	47.8
						Wasatchian	50.5
						Clarkforkian	54.9
	Paleocene	Thanetian			Cenozoic 1	Clarkforkian	56
		Thanetian				Tiffanian	56.2
		Selandian				Tiffanian	59.2
		Selandian				Torrejonian	60.9
		Danian				Torrejonian	61.6
		Danian				Puercan	63.8
Cretaceous	Late Cretaceous	Maastrichtian			Cretaceous 8		66
		Campanian			Cretaceous 7		72.1
		Santonian			Cretaceous 6		83.6
		Coniacian					86.3
		Turonian					89.8
		Cenomanian			Cretaceous 5		93.9
	Early Cretaceous	Albian			Cretaceous 4		100.5
		Aptian			Cretaceous 3		113
		Barremian			Cretaceous 2		121.4
		Hauterivian			Cretaceous 2		125.77
		Valanginian			Cretaceous 1		132.6
		Berriasian			Cretaceous 1		139.8
Jurassic	Late Jurassic	Tithonian			Jurassic 6		145
		Kimmeridgian			Jurassic 5		149.2
		Oxfordian					154.8
	Middle Jurassic	Callovian					161.5
		Bathonian			Jurassic 4		165.3
		Bajocian			Jurassic 4		168.2
		Aalenian			Jurassic 3		170.9
	Early Jurassic	Toarcian			Jurassic 3		174.7
		Pliensbachian	Jurassic 2		184.2
		Sinemurian	Jurassic 1		192.9
		Hettangian	Jurassic 1		199.5
Triassic	Late Triassic	Rhaetian	Triassic 4		201.4
		Norian	Triassic 4		208.5
		Carnian	Triassic 3		227
	Middle Triassic	Ladinian	Triassic 2		237
	Middle Triassic	Anisian	Triassic 2		242
	Early Triassic	Olenekian	Triassic 1		247.2
	Early Triassic	Induan	Triassic 1		251.2
Permian	Lopingian	Changhsingian	Permian 4		251.902
	Lopingian	Wuchiapingian			254.14
	Guadalupian	Capitanian			259.51
		Wordian			264.28
		Roadian	Permian 3		266.9
	Cisuralian	Kungurian	Permian 2		273.01
		Artinskian			283.5
		Sakmarian			290.1
		Asselian	Permian 1		293.52
Carboniferous	Pennsylvanian	Gzhelian	Carboniferous 5		298.9
		Kasimovian	Carboniferous 5	303.7
		Moscovian	Carboniferous 4	307
		Bashkirian	Carboniferous 4	315.2
	Mississippian	Serpukhovian	Carboniferous 3	323.2
		Visean	Carboniferous 2	330.9
		Tournaisian	Carboniferous 1	346.7
Devonian	Late Devonian	Famennian	Late Famennian	Devonian 5	358.9
			Middle Famennian		365.3 *
			Early Famennian		368.5 *
		Frasnian	Late Frasnian	Devonian 4	372.2
			Middle Frasnian		375.4 *
			Early Frasnian		379.3 *
	Middle Devonian	Givetian	Late Givetian	Devonian 3	382.7
			Middle Givetian		383.7 *
			Early Givetian		385.9 *
		Eifelian	Late Eifelian		387.7
		Eifelian	Early Eifelian		390.3 *
	Early Devonian	Emsian	Late Emsian	Devonian 2	393.3
		Emsian	Early Emsian	Devonian 2	398.3 *
		Pragian	Pragian	Devonian 1	407.6
		Lochkovian	Late Lochkovian		410.8
			Middle Lochkovian		412.8 *
			Early Lochkovian		415.6 *
Silurian	Pridoli			Silurian 2	419.2
	Ludlow	Ludfordian			423
	Ludlow	Gorstian			425.6
	Wenlock	Homerian			427.4
	Wenlock	Sheinwoodian			430.5
	Llandovery	Telychian		Silurian 1	433.4
		Aeronian			438.5
		Rhuddanian			440.8
Ordovician	Late Ordovician	Hirnantian		Ordovician 5	443.8
		Katian		Ordovician 5	445.2
		Sandbian		Ordovician 4	453
	Middle Ordovician	Darriwilian		Ordovician 3	458.4
	Middle Ordovician	Dapingian		Ordovician 2	467.3
	Early Ordovician	Floian		Ordovician 2	470
	Early Ordovician	Tremadocian		Ordovician 1	477.7
Cambrian	Furongian	Stage 10		Cambrian 5	485.4
		Jiangshanian			489.5
		Paibian			494
	Miaolingian	Guzhangian		Cambrian 4	497
		Drumian		Cambrian 4	500.5
		Wuliuan		Cambrian 3	504.5
	Series 2	Stage 4		Cambrian 3	509
	Series 2	Stage 3		Cambrian 2	514
	Terreneuvian	Stage 2		Cambrian 2	521
	Terreneuvian	Fortunian		Cambrian 1	529
							538.8