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 "Concreta" - rocks
               Genus "Tophus"
                 1 "Tophus glareae farinaceae"
                 2 "Tophus arenae mixtae, ferro impraegnatae"
                 3 "Tophus humi palustris ochraceo-ferreae"
                 4 "Tophus humi lacustris ochraceo-ferreae"