PBDB Timescale

Ten Million Year Bins

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

J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 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
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

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.

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 1 collections

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International Chronostratigraphic Timescale			Ten Million Year Bins	Paleogene Mammal Ages of Asia		Cambrian of Britain		Obsolete Carboniferous Ages of China	Silurian Ages of Europe	Devonian Subages	Cambrian of West Avalonia	Cretaceous Subepochs
Quaternary	Holocene	Meghalayan	Cenozoic 6										0
		Northgrippian											0.0042
		Greenlandian											0.0082
	Pleistocene	Late Pleistocene											0.0117
		Chibanian											0.129
		Calabrian											0.774
		Gelasian											1.8
Neogene	Pliocene	Piacenzian											2.58
	Pliocene	Zanclean											3.6
	Miocene	Messinian											5.333
		Tortonian											7.246
		Serravallian	Cenozoic 5										11.63
		Langhian											13.82
		Burdigalian											15.98
		Aquitanian											20.44
Paleogene	Oligocene	Chattian	Cenozoic 4	Tabenbulakian	Hsandagolian								23.03
	Oligocene	Rupelian	Cenozoic 4	Kekeamuan	Hsandagolian								27.82
	Eocene	Priabonian	Cenozoic 3	Houldjinian/Ergilian/Ulangochuian									33.9
		Bartonian	Cenozoic 3	Sharamurunian/Irdinmanhan/Arshantan									37.71
		Lutetian	Cenozoic 2										41.2
		Ypresian	Cenozoic 2		Bumbanian								47.8
	Paleocene	Thanetian	Cenozoic 1	Gashatan									56
		Selandian											59.2
		Danian											61.6
Cretaceous	Late Cretaceous	Maastrichtian	Cretaceous 8									Senonian	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									Gallic	100.5
		Aptian	Cretaceous 3										113
		Barremian	Cretaceous 2										121.4
		Hauterivian	Cretaceous 2									Neocomian	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					Mapingian †					298.9
		Kasimovian				303.7		Mapingian †
		Kasimovian					305.9
		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				Late Famennian	358.9
							Middle Famennian	365.3 *
							Early Famennian	368.5 *
		Frasnian	Devonian 4				Late Frasnian	372.2
							Middle Frasnian	375.4 *
							Early Frasnian	379.3 *
	Middle Devonian	Givetian	Devonian 3				Late Givetian	382.7
							Middle Givetian	383.7 *
							Early Givetian	385.9 *
		Eifelian					Late Eifelian	387.7
		Eifelian					Early Eifelian	390.3 *
	Early Devonian	Emsian	Devonian 2				Late Emsian	393.3
		Emsian	Devonian 2				Early Emsian	398.3 *
		Pragian	Devonian 1				Pragian	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			Gleedonian		427.4
		Homerian			Whitwellian		429.7 *
		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				Merioneth	Dolgellian/Trempealeauan	Franconian †/Dresbachian/Millardan	485.4
								Dolgellian/Trempealeauan		Sunwaptan	487.5
								Festiniogian			489.2 *
		Jiangshanian									489.5
										Steptoean	493 *
								Maentwrogian			493.1 *
		Paibian						Maentwrogian			494
	Miaolingian	Guzhangian	Cambrian 4				St Davids		Marjumian	Albertian †	497
		Guzhangian									Arcadian	498.4
		Drumian										500.5
		Wuliuan	Cambrian 3						Topazan			504.5
		Wuliuan							Delamaran			506.5
	Series 2	Stage 4					Caerfai		Delamaran	Branchian	Waucoban †	509
		Stage 4							Dyeran			511 *
		Stage 3	Cambrian 2						Dyeran			514
									Montezuman			514.8 *
									Montezuman	Placentian		517.1
									Begadean			519.9 *
	Terreneuvian	Stage 2										521
	Terreneuvian	Fortunian	Cambrian 1									529
													538.8