Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Lapideum - mineral kingdom
         Class Petræ - stones
           Order Calcarii - calcareous stones
             Genus Marmor
               Fugacia
                 1 Marmor fugax opacum - gypsum
                 1.0 Gypsum - gypsum see Marmor fugax opacum
                 2 Marmor fugax subdiaphanum - alabaster
                 2.0 Alabastrum - alabaster see Marmor fugax subdiaphanum