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

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				Cambrian of Kazakhstan	Cambrian of Britain		Ordovician of Ibero-Bohemia
Ordovician	Late Ordovician	Hirnantian	Harju	Porkuni						Kosovian				443.8
		Katian		Pirgu						Kralodvorian	Bohdalec †			445.2
				Vormsi						Kralodvorian				449.6 *
				Vormsi						Berounian				449.7 *
				Nabala	Johvi †									450 *
			Viru	Rakvere										450.6 *
				Oandu										452 *
		Sandbian		Keila	Idavere †									453
				Haljala										453.9
				Haljala								Zahorany †/Vinice	Letna †	456.2 *
				Kukruse										456.4 *
				Uhaku	Aluoja †									457.5 *
											Liben †			458 *
	Middle Ordovician	Darriwilian												458.4
										Dobrotivian				458.5 *
				Lasnamagi						Dobrotivian				458.9 *
				Lasnamagi						Oretanian				459.7 *
				Aseri										460.4 *
				Aseri							Sarka †			461.7 *
			Oeland	Kunda										462.9 *
				Kunda	Valaste †/Hunderum									464.3 *
				Volkhov		Langevoja †/Vaana/Saka								467.1 *
		Dapingian									Klabava †			467.3
										Arenigian				468
				Billingen										469.3 *
	Early Ordovician	Floian												470
					Latorp †									470.1 *
				Hunneberg										473.7 *
		Tremadocian		Hunneberg			Ungurian			Tremadocian				477.7
				Varangu										481.3 *
				Pakerort										482.2 *
Cambrian	Furongian	Stage 10		Pakerort			Batyrbaian	Merioneth	Dolgellian/Trempealeauan					485.4
														486.3 *
														486.5
									Festiniogian					489.2 *
		Jiangshanian												489.5
							Aksaian							490.7 *
							Sakian							492.2 *
									Maentwrogian					493.1 *
		Paibian							Maentwrogian					494
	Miaolingian	Guzhangian					Ayusokkanian	St Davids						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