Order Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
   Suborder Charadrii Huxley, 1867 - shorebirds see Order Charadriiformes Huxley, 1867
     Family Recurvirostridae Bonaparte, 1831 - stilts, avocets
       Subfamily †Presbyornithinae (Wetmore) P. Brodkorb, 1967 see Family Presbyornithidae Wetmore, 1926
         1 Genus †Presbyornis Wetmore, 1926
         2 Genus †Coltonia Hardy, 1959