PBDB Timescale

Cambrian of Britain

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 12 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 602 collections

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International Chronostratigraphic Timescale			Cambrian of Britain		Cambrian of China		Ten Million Year Bins	Cambrian of Siberia
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				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				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				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	303.7				Carboniferous 5
		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	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
		Tremadocian	Ordovician 1	477.7
		Tremadocian	Ordovician 1	Mansian †	483.55 *
Cambrian	Furongian	Stage 10	Merioneth	Dolgellian/Trempealeauan	Niuchehean	Taoyuanian †	Cambrian 5	Batyrbaian	Tavgian †	Ketyan †/Yurakian	485.4
		Stage 10		Festiniogian	Niuchehean						489.2 *
		Jiangshanian			Jiangshanian						489.5
								Aksaian			490.7 *
								Sakian			492.2 *
				Maentwrogian							493.1 *
		Paibian			Paibian						494
										Ensyan †/Maduan/Nganasanian	494.7 *
						Waergangian †/Youshuanian				Ensyan †/Maduan/Nganasanian	494.9 *
	Miaolingian	Guzhangian	St Davids		Guzhangian	Wangcunian †	Cambrian 4	Ayusokkanian			497
		Guzhangian			Guzhangian			Mayan/Menevian			499.5
		Drumian			Drumian			Mayan/Menevian			500.5
		Wuliuan			Wuliuan/Taijangian		Cambrian 3	Amgan/Solvan			504.5
	Series 2	Stage 4	Caerfai		Duyunian			Amgan/Solvan			509
								Toyonian	Lenian †		510 *
								Botomian			512.5 *
		Stage 3			Nangaoian		Cambrian 2	Botomian			514
		Stage 3			Nangaoian			Atdabanian			515.6 *
	Terreneuvian	Stage 2			Meishucunian			Tommotian			521
		Stage 2						Nemakit-Daldynian			525.5
		Fortunian					Cambrian 1		Manykaian †		529
		Fortunian			Jinnigian		Cambrian 1		Manykaian †		530.7
											538.8