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Substage: Kasimovian (307.0 - 303.7 Ma) (chronostratigraphic unit)
Classification by:

stratigraphic intervals
   (System) †Carboniferous (358.9 - 298.9 Ma)
     (Series) †Upper
       (Stage) †Stephanian
         (Substage) †Kasimovian (307.0 - 303.7 Ma)

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Last updated: 1 Feb 2024