PBDB Timescale

Ten Million Year Bins

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

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
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
P. L. Gibbard, M. J. Head, and M. J. C. Walker. 2010. Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma. Journal of Quaternary Science 25(2):96-102 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 56 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 1 collections

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International Chronostratigraphic Timescale			Ten Million Year Bins	Permian of China	Devonian of Eastern North America		Cenozoic Subepochs of Southern Europe	North American Land Mammal Ages	Cambrian of Australia
Quaternary	Holocene	Meghalayan	Cenozoic 6					Saintaugustinean		0
		Meghalayan						Santarosean		0.0004
		Northgrippian								0.0042
		Greenlandian								0.0082
	Pleistocene	Late Pleistocene					Tarantian			0.0117
		Late Pleistocene					Tarantian	Rancholabrean		0.014
		Chibanian					Ionian	Rancholabrean		0.129
		Chibanian					Ionian	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								7.246
		Tortonian						Clarendonian		9.4
		Serravallian	Cenozoic 5					Clarendonian		11.63
		Serravallian						Barstovian		12.5
		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	Meishanian	251.902
		Changhsingian		Baoqingian	253.4 *
		Wuchiapingian		Laoshanian	254.14
		Wuchiapingian		Laibinian	257.7 *
	Guadalupian	Capitanian		Lengwuan	259.51
		Wordian		Kuhfengian	264.28
		Roadian	Permian 3	Kuhfengian	266.9
	Cisuralian	Kungurian	Permian 2	Luodianian	273.01
		Artinskian		Luodianian	283.5
		Artinskian		Longlinian	285.4 *
		Sakmarian		Longlinian	290.1
		Asselian	Permian 1	Zisongian	293.52
Carboniferous	Pennsylvanian	Gzhelian	Carboniferous 5	Zisongian	298.9
		Gzhelian			300.1
		Kasimovian			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	Devonian 5		Conewangan/Conneautan/Canadaway	358.9
	Late Devonian	Frasnian	Devonian 4		West Fallsian/Sonyean	372.2
	Middle Devonian	Givetian	Devonian 3		Geneseean/Taghanican/Tioughniogan	Cazenovian	382.7
	Middle Devonian	Eifelian	Devonian 3		Southwoodian	Cazenovian	387.7
	Early Devonian	Emsian	Devonian 2		Sawkillian/Deer Parkian	Helderbergian	393.3
		Pragian	Devonian 1				407.6
		Lochkovian	Devonian 1				410.8
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				Datsonian	485.4
		Stage 10					Payntonian	486.8 *
		Jiangshanian					Iverian	489.5
		Paibian					Idamean	494
	Miaolingian	Guzhangian	Cambrian 4				Mindyallan	497
							Mindyallan	Arcadian	498.4
							Boomerangian		499
		Drumian					Undillan		500.5
		Drumian					Floran		503
		Wuliuan	Cambrian 3				Templetonian		504.5
		Wuliuan					Ordian		507.8 *
	Series 2	Stage 4					Ordian	Branchian	509
		Stage 4							510.8 *
		Stage 3	Cambrian 2						514
		Stage 3						Placentian	517.1
	Terreneuvian	Stage 2							521
	Terreneuvian	Fortunian	Cambrian 1						529
										538.8