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 Kazakhstan
Ordovician	Late Ordovician	Hirnantian	Harju	Porkuni			Ashgill	Hirnantian				443.8
		Katian		Pirgu				Rawtheyan				445.2
								Cautleyan				448.9 *
								Pusgillian				449.3 *
				Vormsi			Caradoc	Streffordian	Onnian †			449.6 *
				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 *
				Kukruse								456.4 *
								Aurelucian				456.8 *
									Soudleyan †/Harnagian/Costonian			457.4 *
				Uhaku	Aluoja †				Soudleyan †/Harnagian/Costonian			457.5 *
	Middle Ordovician	Darriwilian		Uhaku			Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn				458.4
				Lasnamagi								458.9 *
				Aseri								460.4 *
				Aseri				Abereiddian/Early Llanvirn				461.3 *
			Oeland	Kunda								462.9 *
				Kunda	Valaste †/Hunderum							464.3 *
				Volkhov		Langevoja †/Vaana/Saka						467.1 *
		Dapingian										467.3
							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			Ungurian	477.7
								Cressagian				480.8 *
				Varangu								481.3 *
				Pakerort								482.2 *
												485 *
Cambrian	Furongian	Stage 10									Batyrbaian	485.4
												486.3 *
												486.5
		Jiangshanian										489.5
											Aksaian	490.7 *
											Sakian	492.2 *
		Paibian									Sakian	494
	Miaolingian	Guzhangian									Ayusokkanian	497
		Guzhangian										499.5
		Drumian									Zhanaarykian	500.5
		Drumian									Tuesaian	503
		Wuliuan									Tuesaian	504.5
		Wuliuan										505.3
	Series 2	Stage 4										509
											Toyonian	510 *
											Botomian	512.5 *
		Stage 3									Botomian	514
		Stage 3									Atdabanian	515.6 *
	Terreneuvian	Stage 2									Tommotian	521
												525.5