stratigraphic intervals
   (System) †Cretaceous (145.0 - 66.0 Ma)
     (Series) †Upper (100.5 - 66.0 Ma)
       (Subseries) †Gallic
         (Stage) †Turonian (93.9 - 89.8 Ma)
           1 (Substage) †bizeti-deveriai Zones
           2 (Substage) †lower