Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Aves Plinius, nom. inval. - birds see Class Aves Linnaeus, 1758
           Order Passeres nom. inval. see Order Passeres Linnaeus, 1758
             Genus Parus nom. inval. see Genus Parus Linnaeus, 1758
               1 Parus nom. inval.
               2 Parus caudatus nom. inval.
               3 Parus cristatus nom. inval.