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				Ordovician of Britain				Cambrian of Britain		Ordovician of Ibero-Bohemia
Ordovician	Late Ordovician	Hirnantian	Harju	Porkuni			Ashgill	Hirnantian					Kosovian				443.8
		Katian		Pirgu				Rawtheyan					Kralodvorian	Bohdalec †			445.2
								Cautleyan									448.9 *
								Pusgillian									449.3 *
				Vormsi			Caradoc	Streffordian	Onnian †								449.6 *
				Vormsi									Berounian				449.7 *
				Nabala	Johvi †												450 *
			Viru	Rakvere													450.6 *
				Rakvere				Cheneyan									451.5 *
				Oandu				Cheneyan									452 *
				Oandu				Burrellian									452.7 *
		Sandbian		Keila	Idavere †												453
				Keila					Actonian †								453.2 *
				Haljala					Actonian †								453.9
									Marshbrookian †	Woolstonian †							454.2 *
									Longvillian †								455.2 *
															Zahorany †/Vinice	Letna †	456.2 *
				Kukruse													456.4 *
								Aurelucian									456.8 *
									Soudleyan †/Harnagian/Costonian								457.4 *
				Uhaku	Aluoja †												457.5 *
														Liben †			458 *
	Middle Ordovician	Darriwilian					Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn									458.4
													Dobrotivian				458.5 *
				Lasnamagi									Dobrotivian				458.9 *
				Lasnamagi									Oretanian				459.7 *
				Aseri													460.4 *
								Abereiddian/Early Llanvirn									461.3 *
														Sarka †			461.7 *
			Oeland	Kunda													462.9 *
				Kunda	Valaste †/Hunderum												464.3 *
				Volkhov		Langevoja †/Vaana/Saka											467.1 *
		Dapingian												Klabava †			467.3
													Arenigian				468
							Arenig	Fennian									468.4 *
				Billingen													469.3 *
	Early Ordovician	Floian															470
					Latorp †												470.1 *
								Whitlandian									471.1 *
				Hunneberg				Whitlandian									473.7 *
								Moridunian									474.3 *
		Tremadocian					Tremadoc	Migneintian					Tremadocian				477.7
								Cressagian									480.8 *
				Varangu													481.3 *
				Pakerort													482.2 *
																	485 *
Cambrian	Furongian	Stage 10									Merioneth	Dolgellian/Trempealeauan					485.4
																	486.3 *
																	486.5
												Festiniogian					489.2 *
		Jiangshanian										Festiniogian					489.5
		Jiangshanian										Maentwrogian					493.1 *
		Paibian										Maentwrogian					494
	Miaolingian	Guzhangian									St Davids						497
		Drumian															500.5
		Wuliuan															504.5
	Series 2	Stage 4									Caerfai						509
	Series 2	Stage 3															514
	Terreneuvian	Stage 2															521
	Terreneuvian	Fortunian															529
																	538.8