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Stratigraphy
Segerstad Formation
Belongs toBaltic lithostratigraphy (Ordovician)
Typelithostratigraphy
RankFormation
Scoperegional
Statusformal standard
AuthorJaanusson & Mutvei
Year1953
Age (Ma)Aseri Stage
Alt. index
O2sg
Date added2009-10-02
Date changed2014-11-27
Locality
Type
From (m)
To (m)
Reference
Remarks
Not established
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