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Stratigraphy
Viru Series
Stratigraphy
Index
Index add'l
Type
Rank
Scope
Belongs to
Age (Ma)
Age
Base
Top
Kahula Formation
O3kh
lithostratigraphy
Formation
regional
Baltic lithostratigraphy (Ordovician)
Viru Series
Mežciems Group
lithostratigraphy
Group
regional
Viru Series
Variku Formation
O3vr
lithostratigraphy
Formation
regional
Baltic lithostratigraphy (Ordovician)
Viru Series
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