Phylum Chordata Bateson, 1885 - chordates
   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
           Suborder Lari Sharpe, 1891 - gulls and allies
             Family Rhynchopidae see Family Rynchopidae Bonaparte, 1838
               Genus Rhynchops Linnaeus, 1758 see Genus Rynchops Linnaeus, 1758
                 Rhynchops albicollis Swainson, 1838 see Rynchops albicollis Swainson, 1838
                 Rhynchops flavirostris Vieillot, 1816 see Rynchops flavirostris Vieillot, 1816
                 Rhynchops niger see Rynchops niger Linnaeus, 1758