The Braksøya Formation is a geologic formation in the Ringerike and Modum areas in Buskerud, Norway, where it overlies the Bruflat Formation and the Skien and Holmestrand areas where it overlies the Porsgrunn Formation and Skinnerbukta Formation respectively.Worsley et al., 2011, p.102 The formation, deposited in a shallow Caledonian foreland basin at the edge of a closing Iapetus Ocean,Worsley et al., 2011, p.117 preserves fossils dating back to the Sheinwoodian stage of the Silurian period.Braksøya Formation at Fossilworks.org
Fossil content
The stromatoporoid bioherms of the Braksøya Formation have provided fossils of:Nestor, 1999 Stromatoporida Syringostromellidae Syringostromella cf. aspectabilis Actinostromatida Actinostromatidae Plectostroma norvegicum Clathrodictyida Clathrodictyidae Clathrodictyon cf. crickmayi
See also List of fossiliferous stratigraphic units in Norway Buildwas Formation, Sheinwoodian type formation in England Llallagua Formation, Sheinwoodian fossiliferous formation in Bolivia
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