Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758
           [Class "Vermes" nom. inval. - vermin] see Class Vermes Linnaeus, 1758
             [Order "Testacea" nom. inval.] see Order Testacea Linnaeus, 1758
               [Genus "Nautilus" nom. inval.] see Genus Nautilus Linnaeus, 1758
                 1 "Nautilus" nom. inval.
                 2 "Orthoceros" nom. inval.
                 3 "Lituus" nom. inval.