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Stratigraphy
Öland Series
Stratigraphy
Index
Index add'l
Type
Rank
Scope
Belongs to
Age (Ma)
Age
Base
Top
Iru Subseries
chronostratigraphy
Subseries
regional
Öland Series489.8483.4
Paleozoic
Ontika Subseries
chronostratigraphy
Subseries
regional
Öland Series483.4463.8
Ordovician
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