Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [Regnum Animale C. Linnaeus, 1758 - animal kingdom] see Kingdom Animalia Linnaeus, 1758
           [Class Vermes Linnaeus, 1758 - worms] see Phylum Vermes (C. Linnaeus, 1758)
             1 [Order Intestina Linnaeus, 1758]
             2 [Order Mollusca Linnaeus, 1758] see Phylum Mollusca Linnaeus, 1758
             3 [Order Testacea Linnaeus, 1758]
             4 [Order Lithophyta Linnaeus, 1758]
             5 [Order Zoophyta Linnaeus, 1758]