Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
         Family Laridae Vigors, 1825 - gulls, terns and skimmers
           Subfamily Larinae Vigors, 1825 - gulls
             Genus Larus Linnaeus, 1758
               Larus cachinnans Pallas, 1811 - yellow-legged gull
                 1 Larus cachinnans atlantis Dwight, 1922 - Atlantic Islands gull
                 2 Larus cachinnans michahellis Naumann, 1840
                 3 Larus cachinnans cachinnans Pallas, 1811 - yellow-legged gull
                 4 Larus cachinnans barabensis Johansen, 1960
                 5 Larus cachinnans mongolicus Sushkin, 1925