PBDB Timescale

Ordovician of the Baltic

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

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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view

There are 14 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 3244 collections

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International Chronostratigraphic Timescale			Ordovician of the Baltic				Ordovician of Australia	Cambrian of China
Ordovician	Late Ordovician	Hirnantian	Harju	Porkuni			Bolindian			443.8
		Katian		Pirgu			Bolindian			445.2
				Pirgu			Eastonian			449 *
				Vormsi						449.6 *
				Nabala	Johvi †					450 *
			Viru	Rakvere						450.6 *
				Oandu			Gisbornian			452 *
		Sandbian		Keila	Idavere †					453
				Haljala						453.9
				Kukruse						456.4 *
				Uhaku	Aluoja †					457.5 *
	Middle Ordovician	Darriwilian		Uhaku			Darriwilian			458.4
				Lasnamagi						458.9 *
				Aseri						460.4 *
			Oeland	Kunda						462.9 *
				Kunda	Valaste †/Hunderum					464.3 *
				Volkhov		Langevoja †/Vaana/Saka				467.1 *
		Dapingian					Yapeenian			467.3
							Castlemainian			468.5 *
				Billingen			Castlemainian			469.3 *
	Early Ordovician	Floian					Chewtonian			470
					Latorp †		Chewtonian			470.1 *
							Bendigonian			471.8 *
							Lancefieldian			473.5 *
				Hunneberg						473.7 *
		Tremadocian		Hunneberg						477.7
				Varangu						481.3 *
				Pakerort						482.2 *
							Warendian			482.8 *
Cambrian	Furongian	Stage 10						Niuchehean	Taoyuanian †	485.4
										486.3 *
										486.5
		Jiangshanian						Jiangshanian		489.5
		Paibian						Paibian		494
		Paibian						Paibian	Waergangian †/Youshuanian	494.9 *
	Miaolingian	Guzhangian						Guzhangian	Wangcunian †	497
		Drumian						Drumian	Wangcunian †	500.5
		Wuliuan						Wuliuan/Taijangian		504.5
	Series 2	Stage 4						Duyunian		509
	Series 2	Stage 3						Nangaoian		514
	Terreneuvian	Stage 2						Meishucunian		521
		Fortunian						Meishucunian		529
		Fortunian						Jinnigian		530.7
										538.8