stratigraphic intervals
   (System) †Devonian (419.2 - 358.9 Ma)
     (Series) †Upper (382.7 - 358.9 Ma)
       (Stage) †Famennian (372.2 - 358.9 Ma)
         1 (Biozone) †Wocklumeria Zone
         2 (Substage) †Platyclymenia + Clymenia Zones
         3 (Biozone) †Cheiloceras Zone