PBDB Interval

449.5 - 443.8 Ma

The definition of this interval in the timescale Ordovician of China is taken from the following source:

B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view

There are intervals in 7 timescales which overlap this one. show

This interval is no longer in current use

This interval is used in the definition of 49 collections

A total of 3780 collections with 25259 occurrences lie within this time span

International Chronostratigraphic Timescale			Ordovician of China			Ordovician of the Baltic
Ordovician	Late Ordovician	Hirnantian	Hirnantian	Xiaoxita †/Shikou	Wufeng †	Harju	Porkuni			443.8
		Katian	Chientangkiangian		Wufeng †		Pirgu			445.2
			Neichianshanian/Hanjiang				Pirgu			449.5
							Vormsi			449.6 *
							Nabala	Johvi †		450 *
						Viru	Rakvere			450.6 *
							Oandu			452 *
		Sandbian					Keila	Idavere †		453
							Haljala			453.9
							Kukruse			456.4 *
							Uhaku	Aluoja †		457.5 *
	Middle Ordovician	Darriwilian	Darriwilian	Guniu †/Hulo			Uhaku			458.4
							Lasnamagi			458.9 *
							Aseri			460.4 *
						Oeland	Kunda			462.9 *
								Valaste †/Hunderum		464.3 *
				Hunjiang †	Dawan †/Daobaowan/Ningkuo					466.3 *
							Volkhov		Langevoja †/Vaana/Saka	467.1 *
		Dapingian	Dapingian				Volkhov			467.3
		Dapingian	Dapingian				Billingen			469.3 *
	Early Ordovician	Floian	Yiyangian							470
								Latorp †		470.1 *
							Hunneberg			473.7 *
		Tremadocian	Xinchangian							477.7
					Lianghekou †					477.9 *
							Varangu			481.3 *
							Pakerort			482.2 *
										485.4 *
										486.3
										486.5