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
             1 [Order "Accipitres" Plinius, nom. inval.] see Order Accipitres Linnaeus, 1758
             2 [Order "Picae" nom. inval.] see Order Picae Linnaeus, 1758
             3 [Order "Anseres" nom. inval.] see Order Anseres Linnaeus, 1758
             3 [Order "Macrorhynchae" nom. inval.] see Order Grallae Linnaeus, 1758
             4 [Order "Scolopaces" nom. inval.] see Order Grallae Linnaeus, 1758
             5 [Order "Gallinae" nom. inval.] see Order Gallinae Linnaeus, 1758
             6 [Order "Passeres" nom. inval.] see Order Passeres Linnaeus, 1758