Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         "Lapideum Regnum" nom. inval. - mineral kingdom
           Class "Fossilia" nom. inval. - Lapides aggregati
             Order †"Petrificata" - fossils
               Genus †"Graptolithus" nom. inval.
                 †"Graptolithus circulos intra circulos referens" nom. inval.