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

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.

This timescale is used in the definition of 602 collections

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International Chronostratigraphic Timescale			Cambrian of Britain		Cambrian of Kazakhstan
Quaternary	Holocene	Meghalayan				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				11.63
		Langhian				13.82
		Burdigalian				15.98
		Aquitanian				20.44
Paleogene	Oligocene	Chattian				23.03
	Oligocene	Rupelian				27.82
	Eocene	Priabonian				33.9
		Bartonian				37.71
		Lutetian				41.2
		Ypresian				47.8
	Paleocene	Thanetian				56
		Selandian				59.2
		Danian				61.6
Cretaceous	Late Cretaceous	Maastrichtian				66
		Campanian				72.1
		Santonian				83.6
		Coniacian				86.3
		Turonian				89.8
		Cenomanian				93.9
	Early Cretaceous	Albian				100.5
		Aptian				113
		Barremian				121.4
		Hauterivian				125.77
		Valanginian				132.6
		Berriasian				139.8
Jurassic	Late Jurassic	Tithonian				145
		Kimmeridgian				149.2
		Oxfordian				154.8
	Middle Jurassic	Callovian				161.5
		Bathonian				165.3
		Bajocian				168.2
		Aalenian				170.9
	Early Jurassic	Toarcian				174.7
		Pliensbachian				184.2
		Sinemurian				192.9
		Hettangian				199.5
Triassic	Late Triassic	Rhaetian				201.4
		Norian				208.5
		Carnian				227
	Middle Triassic	Ladinian				237
	Middle Triassic	Anisian				242
	Early Triassic	Olenekian				247.2
	Early Triassic	Induan				251.2
Permian	Lopingian	Changhsingian				251.902
	Lopingian	Wuchiapingian				254.14
	Guadalupian	Capitanian				259.51
		Wordian				264.28
		Roadian				266.9
	Cisuralian	Kungurian				273.01
		Artinskian				283.5
		Sakmarian				290.1
		Asselian				293.52
Carboniferous	Pennsylvanian	Gzhelian				298.9
		Kasimovian	303.7
		Moscovian	307
		Bashkirian	315.2
	Mississippian	Serpukhovian	323.2
		Visean	330.9
		Tournaisian	346.7
Devonian	Late Devonian	Famennian	358.9
	Late Devonian	Frasnian	372.2
	Middle Devonian	Givetian	382.7
	Middle Devonian	Eifelian	387.7
	Early Devonian	Emsian	393.3
		Pragian	407.6
		Lochkovian	410.8
Silurian	Pridoli		419.2
	Ludlow	Ludfordian	423
	Ludlow	Gorstian	425.6
	Wenlock	Homerian	427.4
	Wenlock	Sheinwoodian	430.5
	Llandovery	Telychian	433.4
		Aeronian	438.5
		Rhuddanian	440.8
Ordovician	Late Ordovician	Hirnantian	443.8
		Katian	445.2
		Sandbian	453
	Middle Ordovician	Darriwilian	458.4
	Middle Ordovician	Dapingian	467.3
	Early Ordovician	Floian	470
	Early Ordovician	Tremadocian	Ungurian	477.7
Cambrian	Furongian	Stage 10	Merioneth	Dolgellian/Trempealeauan	Batyrbaian	485.4
		Stage 10		Festiniogian		489.2 *
		Jiangshanian				489.5
					Aksaian	490.7 *
					Sakian	492.2 *
				Maentwrogian		493.1 *
		Paibian		Maentwrogian		494
	Miaolingian	Guzhangian	St Davids		Ayusokkanian	497
		Guzhangian				499.5
		Drumian			Zhanaarykian	500.5
		Drumian			Tuesaian	503
		Wuliuan			Tuesaian	504.5
		Wuliuan				505.3
	Series 2	Stage 4	Caerfai			509
					Toyonian	510 *
					Botomian	512.5 *
		Stage 3			Botomian	514
		Stage 3			Atdabanian	515.6 *
	Terreneuvian	Stage 2			Tommotian	521
		Stage 2				525.5
		Fortunian				529
						538.8