stratigraphic intervals (System) †Carboniferous (358.9 - 298.9 Ma) (Series) †Upper 1 (Stage) †Stephanian 2 (Stage) †Moscovian (315.2 - 307.0 Ma) 3 (Stage) †Bashkirian (323.2 - 315.2 Ma) 4 (Stage) †Serpukhovian (330.9 - 323.2 Ma)