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
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

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	Cambrian of China		Cambrian of Australia	Cambrian of Britain		Devonian of Eastern North America		Neogene Mammal Ages of China	Cretaceous Subepochs	Silurian of North America
Quaternary	Holocene	Meghalayan	Cenozoic 6													0
		Northgrippian														0.0042
		Greenlandian														0.0082
	Pleistocene	Late Pleistocene									Nihewanian					0.0117
		Chibanian														0.129
		Calabrian														0.774
		Gelasian														1.8
Neogene	Pliocene	Piacenzian									Yushean					2.58
		Zanclean									Yushean					3.6
		Zanclean									Baodean					4.9
	Miocene	Messinian														5.333
		Tortonian														7.246
		Tortonian									Tunggurian					11.1
		Serravallian	Cenozoic 5								Tunggurian					11.63
		Langhian									Shanwangian					13.82
		Burdigalian									Shanwangian					15.98
		Burdigalian									Xiejiaan					16.9
		Aquitanian									Xiejiaan					20.44
Paleogene	Oligocene	Chattian	Cenozoic 4													23.03
	Oligocene	Rupelian	Cenozoic 4													27.82
	Eocene	Priabonian	Cenozoic 3													33.9
		Bartonian	Cenozoic 3													37.71
		Lutetian	Cenozoic 2													41.2
		Ypresian	Cenozoic 2													47.8
	Paleocene	Thanetian	Cenozoic 1													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	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	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			Cayugan	419.2
	Pridoli					Niagaran	422.5 *
	Ludlow	Ludfordian					423
	Ludlow	Gorstian					425.6
	Wenlock	Homerian					Lockportian	427.4
	Wenlock	Sheinwoodian						430.5
	Llandovery	Telychian	Silurian 1				Ontarian	433.4
		Aeronian						438.5
								Alexandrian	438.7 *
						Medinan	Clinton		440.1 *
									440.7 *
		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						Niuchehean	Taoyuanian †	Datsonian		Merioneth	Dolgellian/Trempealeauan	485.4
											Payntonian			Dolgellian/Trempealeauan	486.8 *
											Payntonian			Festiniogian	489.2 *
		Jiangshanian							Jiangshanian		Iverian			Festiniogian	489.5
		Jiangshanian							Jiangshanian		Iverian	Maentwrogian		493.1 *
		Paibian							Paibian		Idamean			494
		Paibian							Paibian	Waergangian †/Youshuanian	Idamean			494.9 *
	Miaolingian	Guzhangian	Cambrian 4						Guzhangian	Wangcunian †	Mindyallan	St Davids		497
		Guzhangian							Guzhangian		Boomerangian			499
		Drumian							Drumian		Undillan			500.5
		Drumian							Drumian		Floran			503
		Wuliuan	Cambrian 3						Wuliuan/Taijangian		Templetonian			504.5
		Wuliuan							Wuliuan/Taijangian		Ordian			507.8 *
	Series 2	Stage 4							Duyunian		Ordian	Caerfai		509
		Stage 4							Duyunian					510.8 *
		Stage 3	Cambrian 2						Nangaoian					514
	Terreneuvian	Stage 2	Cambrian 2						Meishucunian					521
		Fortunian	Cambrian 1						Meishucunian					529
		Fortunian	Cambrian 1						Jinnigian					530.7
																538.8