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 †"Ornitholithus" nom. inval. - fossil birds
                 1 †"Ornitholithus totalis, certi vel incerti generis" nom. inval.
                 2 †"Ornitholithus partialis" nom. inval.