PBDB Timescale

Ten Million Year Bins

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

M. Freudenthal. 2006. Mammal Paleogene zones. personal communication view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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	Mammal Paleogene Zones		Permian of China	Cambrian of Kazakhstan	Ordovician of China
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	MP 30/MP 29/MP 28/MP 27/MP 26	MP 25					23.03
	Oligocene	Rupelian	Cenozoic 4	MP 24/MP 23/MP 22/MP 21	MP 25					27.82
	Eocene	Priabonian	Cenozoic 3	MP 20/MP 19/MP 18/MP 17B/MP 17A						33.9
		Bartonian	Cenozoic 3	MP 16						37.71
		Lutetian	Cenozoic 2	MP 15/MP 14/MP 13/MP 12/MP 11						41.2
		Ypresian	Cenozoic 2	MP 10/MP 8 + 9/MP 7						47.8
	Paleocene	Thanetian	Cenozoic 1	MP 6	MP 1 - 5					56
		Selandian								59.2
		Danian								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			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				358.9
	Late Devonian	Frasnian	Devonian 4				372.2
	Middle Devonian	Givetian	Devonian 3				382.7
	Middle Devonian	Eifelian	Devonian 3				387.7
	Early Devonian	Emsian	Devonian 2				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	Hirnantian	Xiaoxita †/Shikou		Wufeng †	443.8
		Katian		Chientangkiangian			Wufeng †	445.2
		Katian		Neichianshanian/Hanjiang				449.5
		Sandbian	Ordovician 4	Neichianshanian/Hanjiang				453
	Middle Ordovician	Darriwilian	Ordovician 3	Darriwilian	Guniu †/Hulo			458.4
		Darriwilian	Ordovician 3	Darriwilian	Hunjiang †		Dawan †/Daobaowan/Ningkuo	466.3 *
		Dapingian	Ordovician 2	Dapingian				467.3
	Early Ordovician	Floian	Ordovician 2	Yiyangian				470
		Tremadocian	Ordovician 1	Ungurian				Xinchangian	477.7
		Tremadocian	Ordovician 1	Ungurian			Lianghekou †	Xinchangian	477.9 *
Cambrian	Furongian	Stage 10	Cambrian 5	Batyrbaian					485.4
		Jiangshanian		Batyrbaian					489.5
				Aksaian					490.7 *
				Sakian					492.2 *
		Paibian		Sakian					494
	Miaolingian	Guzhangian	Cambrian 4	Ayusokkanian					497
		Guzhangian							499.5
		Drumian		Zhanaarykian					500.5
		Drumian		Tuesaian					503
		Wuliuan	Cambrian 3	Tuesaian					504.5
		Wuliuan							505.3
	Series 2	Stage 4							509
				Toyonian					510 *
				Botomian					512.5 *
		Stage 3	Cambrian 2	Botomian					514
		Stage 3		Atdabanian					515.6 *
	Terreneuvian	Stage 2		Tommotian					521
		Stage 2							525.5
		Fortunian	Cambrian 1						529
										538.8