Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758
           [Class "Aves" Plinius, nom. inval. - birds] see Class Aves Linnaeus, 1758
             [Order "Anseres" nom. inval.] see Order Anseres Linnaeus, 1758
               1 [Genus "Phoenicopterus" Linnaeus, 1748] see Genus Phoenicopterus Linnaeus, 1758
               2 [Genus "Anas" nom. inval.] see Genus Anas Linnaeus, 1758
               2.0 [Genus "Cygnus" nom. inval.] see Genus Anas Linnaeus, 1758
               2.0 [Genus "Platelea" nom. inval.] see Genus Platalea Linnaeus, 1758
               3 [Genus "Mergus" nom. inval.] see Genus Mergus Linnaeus, 1758
               4 [Genus "Pelecanus" nom. inval.] see Genus Pelecanus Linnaeus, 1758
               4.0 [Genus "Graculus" nom. inval.]
               5 [Genus "Colymbus" nom. inval.] see Genus Colymbus Linnaeus, 1758
               6 [Genus "Alca" nom. inval.] see Genus Alca Linnaeus, 1758
               7 [Genus "Larus" nom. inval.] see Genus Larus Linnaeus, 1758
               8 [Genus "Sterna" nom. inval.] see Genus Sterna Linnaeus, 1758