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
               Rudia
                 1 Marmor rude
                 1.0 Calcarius Lapis see Marmor rude
                 2 Marmor rude, venis qvartzosis rubris
                 2.0 Vena hæmatica see Marmor rude, venis qvartzosis rubris