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Stratigraphy
Viru Series
Belongs toBaltic Ordovician
Typechronostratigraphy
RankSeries
Scoperegional
Statusformal standard
EtymonVirumaa, region in NE Estonia
Age top (Ma)452
Age base (Ma)463.8
Age (Ma)Upper Ordovician
Age referenceCooper & Sadler, 2004
Date changed2024-05-06
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