Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
Status: extant
   Subclass Ornithurae Haeckel, 1866 see Clade Ornithurae Haeckel 1866 [Gauthier 1986] {Chiappe 1991}
  Status: extant
     Infraclass Carinatae Merrem, 1813 see Clade Carinatae Merrem 1813 [Gauthier & de Queiroz 2001]
    Status: extant
       Order Ardeiformes Wagler, 1830
      Status: extant
         Suborder Ardeae Wagler, 1831 see Order Ardeiformes Wagler, 1830
        Status: extant
           Family Ardeidae Leach, 1820 - herons, bitterns and egrets
          Status: extant
             Genus †Proherodius Lydekker, 1891, nom. dub.
            Status: fossil