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Stratigraphy
Sillaoru Formation
Belongs toBaltic lithostratigraphy (Ordovician)
Typelithostratigraphy
RankFormation
Scoperegional
Statusformal standard
AuthorGrigelis
Year1978
EtymonSillaoru, watermill (E)
Original localityPurtse river bank at Sillaoru
Age (Ma)Kunda Stage
Index
BII-IIIS
Alt. index
O2sl
Date added2009-10-02
Date changed2024-06-25
Locality
Type
From (m)
To (m)
Reference
Remarks
Purtse river
holostratotype
Purtse river bank at Sillaoru
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