PBDB Interval

International Chronostratigraphic Timescale

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

K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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

There are 59 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 126762 collections

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International Chronostratigraphic Timescale			Carbo-Permian of the Russian Platform	Ten Million Year Bins	Carboniferous of Western Europe
							287.6
							297.7
Carboniferous	Pennsylvanian	Gzhelian	Rusavkinian	Carboniferous 5	Kuzel		298.9 *
					Stephanian	Stephanian C	300.3 *
						Stephanian B	300.9 *
						Stephanian A	301.4 *
		Kasimovian	Dorogomilovian				303.7
			Khamovnikian				304.8
			Khamovnikian			Cantabrian	305 *
			Krevyakinian				305.8 *
		Moscovian	Myachkovian	Carboniferous 4			307
			Myachkovian		Westphalian	Westphalian D	307.4 *
			Podolskian			Westphalian D	308.9 *
			Podolskian			Westphalian C	309.8
			Kashirian				311.4 *
			Vereian				313.8
			Vereian			Westphalian B	314.6
			Melekessian				314.8
		Bashkirian	Melekessian				315.2
			Cheremshanian				316.9 *
			Cheremshanian			Westphalian A	317 *
			Prikamian			Westphalian A	318.6 *
			Prikamian		Namurian	Yeadonian	318.8 *
			Severokeltmian			Yeadonian	319.9 *
			Severokeltmian			Marsdenian	320.2 *
			Krasnopolyanian			Marsdenian	321.2 *
			Krasnopolyanian			Kinderscoutian	321.5 *
			Voznesenian			Kinderscoutian	321.9 *
						Alportian	322 *
						Chokierian	323.1 *
	Mississippian	Serpukhovian	Zapaltjubian	Carboniferous 3		Chokierian	323.2
			Zapaltjubian			Arnsbergian	324 *
			Protvian				324.4 *
			Steshevian				326.8 *
			Steshevian			Pendleian	327.4 *
			Tarusian			Pendleian	329 *
		Visean	Venevian	Carboniferous 2	Warnantian	Brigantian †	330.9
			Mikhailovian				331.9 *
			Aleksinian				333.7 *
			Tulian				335.8 *
			Tulian		Livian	Asbian †	336.3 *
			Bobrikian		Livian	Asbian †	339.9 *
			Bobrikian		Moliniacian	Holkerian †/Arundian/Chadian	340.2 *
			Radaevkian		Moliniacian	Holkerian †/Arundian/Chadian	343.4 *
		Tournaisian	Kosvian	Carboniferous 1	Ivorian		346.7
			Kizelian				350.7 *
			Cherepetian				351.9 *
			Cherepetian		Hastarian		353.7 *
			Karakubian				354.4 *
			Upinian				356.3 *
			Malevkian				357.6 *
			Gumerovian				358 *
							358.9