PBDB Timescale

Ten Million Year Bins

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

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, 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
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. 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

Show more time

Show linear time

International Chronostratigraphic Timescale			Ten Million Year Bins	Devonian of Czechoslovakia	Devonian Subages	Silurian Ages of Europe	Carbo-Permian of the Russian Platform	Cambrian of Australia	Cenozoic Subepochs	Cambrian of North America		Cambrian of Siberia			Carboniferous Subepochs	Ordovician of Ibero-Bohemia
Quaternary	Holocene	Meghalayan	Cenozoic 6																0
		Northgrippian																	0.0042
		Greenlandian																	0.0082
	Pleistocene	Late Pleistocene							Late Pleistocene										0.0117
		Chibanian							Middle Pleistocene										0.129
		Calabrian							Early Pleistocene										0.774
		Gelasian							Early Pleistocene										1.8
Neogene	Pliocene	Piacenzian							Late Pliocene										2.58
	Pliocene	Zanclean							Early Pliocene										3.6
	Miocene	Messinian							Late Miocene										5.333
		Tortonian							Late Miocene										7.246
		Serravallian	Cenozoic 5						Middle Miocene										11.63
		Langhian							Middle Miocene										13.82
		Burdigalian							Early Miocene										15.98
		Aquitanian							Early Miocene										20.44
Paleogene	Oligocene	Chattian	Cenozoic 4						Late Oligocene										23.03
	Oligocene	Rupelian	Cenozoic 4						Early Oligocene										27.82
	Eocene	Priabonian	Cenozoic 3						Late Eocene										33.9
		Bartonian	Cenozoic 3						Middle Eocene										37.71
		Lutetian	Cenozoic 2						Middle Eocene										41.2
		Ypresian	Cenozoic 2						Early Eocene										47.8
	Paleocene	Thanetian	Cenozoic 1						Late Paleocene										56
		Selandian							Middle Paleocene										59.2
		Danian							Early Paleocene										61.6
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				Melekhovian												251.902
	Lopingian	Wuchiapingian																	254.14
	Guadalupian	Capitanian																	259.51
		Wordian																	264.28
		Wordian					Noginskian												264.9 *
		Roadian	Permian 3																266.9
	Cisuralian	Kungurian	Permian 2																273.01
		Kungurian					Pavlovoposadian												276.8 *
		Artinskian					Pavlovoposadian												283.5
		Artinskian					Rusavkinian												287.6 *
		Sakmarian		290.1
		Asselian	Permian 1	293.52
Carboniferous	Pennsylvanian	Gzhelian	Carboniferous 5	Late Pennsylvanian	298.9
		Kasimovian			Dorogomilovian	303.7
					Khamovnikian	304.8
					Krevyakinian	305.8 *
		Moscovian	Carboniferous 4	Myachkovian	Middle Pennsylvanian	307
				Podolskian		308.9 *
				Kashirian		311.4 *
				Vereian		313.8
				Melekessian		314.8
		Bashkirian		Melekessian	Early Pennsylvanian	315.2
				Cheremshanian		316.9 *
				Prikamian		318.6 *
				Severokeltmian		319.9 *
				Krasnopolyanian		321.2 *
				Voznesenian		321.9 *
	Mississippian	Serpukhovian	Carboniferous 3	Zapaltjubian	Late Mississippian	323.2
				Protvian		324.4 *
				Steshevian		326.8 *
				Tarusian		329 *
		Visean	Carboniferous 2	Venevian	Middle Mississippian	330.9
				Mikhailovian		331.9 *
				Aleksinian		333.7 *
				Tulian		335.8 *
				Bobrikian		339.9 *
				Radaevkian		343.4 *
		Tournaisian	Carboniferous 1	Kosvian	Early Mississippian	346.7
				Kizelian		350.7 *
				Cherepetian		351.9 *
				Karakubian		354.4 *
				Upinian		356.3 *
				Malevkian		357.6 *
				Gumerovian		358 *
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	Srbsko			Late Givetian	382.7
							Middle Givetian	383.7 *
							Early Givetian	385.9 *
		Eifelian		Chotec			Late Eifelian	387.7
		Eifelian		Chotec			Early Eifelian	390.3 *
	Early Devonian	Emsian	Devonian 2	Daleje/Zlichovian			Late Emsian	393.3
		Emsian	Devonian 2	Daleje/Zlichovian			Early Emsian	398.3 *
		Pragian	Devonian 1	Pragian			Pragian	407.6
		Lochkovian		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						Kosovian	443.8
		Katian							Kralodvorian	Bohdalec †	445.2
		Katian							Berounian		449.7 *
		Sandbian	Ordovician 4								453
											Zahorany †/Vinice	Letna †	456.2 *
										Liben †			458 *
	Middle Ordovician	Darriwilian	Ordovician 3										458.4
									Dobrotivian				458.5 *
									Oretanian				459.7 *
										Sarka †			461.7 *
		Dapingian	Ordovician 2							Klabava †			467.3
		Dapingian							Arenigian				468
	Early Ordovician	Floian							Arenigian				470
		Tremadocian	Ordovician 1						Tremadocian				477.7
		Tremadocian	Ordovician 1						Tremadocian				Mansian †	483.55 *
Cambrian	Furongian	Stage 10	Cambrian 5						Datsonian				Franconian †/Dresbachian/Millardan	Batyrbaian	Tavgian †	Ketyan †/Yurakian	485.4
									Payntonian								486.8 *
									Payntonian								Sunwaptan	487.5
		Jiangshanian							Iverian									489.5
														Aksaian				490.7 *
														Sakian				492.2 *
																	Steptoean	493 *
		Paibian							Idamean									494
		Paibian							Idamean							Ensyan †/Maduan/Nganasanian		494.7 *
	Miaolingian	Guzhangian	Cambrian 4						Mindyallan				Marjumian	Albertian †	Ayusokkanian			497
									Boomerangian						Ayusokkanian			499
									Boomerangian						Mayan/Menevian			499.5
		Drumian							Undillan									500.5
		Drumian							Floran									503
		Wuliuan	Cambrian 3						Templetonian				Topazan		Amgan/Solvan			504.5
									Templetonian				Delamaran					506.5
									Ordian									507.8 *
	Series 2	Stage 4												Waucoban †				509
															Toyonian	Lenian †		510 *
																		510.8 *
													Dyeran					511 *
															Botomian			512.5 *
		Stage 3	Cambrian 2															514
					Montezuman	514.8 *
					Montezuman	Atdabanian									515.6 *
					Begadean	Atdabanian									519.9 *
	Terreneuvian	Stage 2				Tommotian									521
		Stage 2				Nemakit-Daldynian									525.5
		Fortunian	Cambrian 1			Nemakit-Daldynian							Manykaian †		529
																			538.8