Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
           Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
             Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
               Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
                 Order Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
                   01 Family Burhinidae Mathews, 1912 - thick-knees
                   02 Family Plataleidae Bonaparte, 1838
                   03 Family Chionididae Lesson, 1828 - sheathbills
                   04 Family †Graculavidae Fürbringer, 1888
                   05 Family †Cimolopterygidae Brodkorb
                   06 Family †Dakotornithidae Erickson, 1975
                   07 Family Rostratulidae Ridgway, 1919 - painted-snipe
                   08 Family Dromadidae Gray, 1840 - crab plover
                   09 Family Thinocoridae Gray, 1845 - seedsnipes
                   10 Family Pedionomidae Gadow, 1893 - plains wanderer
                   11 Family Jacanidae Stejneger, 1885 - jacanas
                   12 Family Scolopacidae Vigors, 1825 - sandpipers, snipe
                   13 Family Charadriidae Vigors, 1825 - plovers
                   14 Family Haematopodidae Gray, 1840 - oystercatchers see Family Haematopidae Bonaparte, 1838
                   15 Family Recurvirostridae Bonaparte, 1831 - stilts, avocets
                   16 Family Phoenicopteridae Bonaparte, 1831 - flamingos
                   17 Family Glareolidae Brehm, 1831 - coursers, pratincoles
                   18 Family Otididae Gray, 1840 - bustards
                   19 Family Stercorariidae Gray, 1870 - skuas
                   20 Family Laridae Vigors, 1825 - gulls, terns and skimmers
                   21 Family Alcidae Vigors, 1825 - auks