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 [Columbiformes] Latham, 1790 - pigeons and allies
         Family Columbidae Illiger, 1811 - doves, pigeons
           Subfamily Treroninae
             Genus Treron Vieillot, 1816
               Treron curvirostra (Gmelin, 1789) - thick-billed green-pigeon
                 1 Treron curvirostra nipalensis (Hodgson, 1836)
                 2 Treron curvirostra hainanus Hartert & Goodson, 1918
                 3 Treron curvirostra curvirostra (Gmelin, 1789)
                 4 Treron curvirostra haliplous Oberholser, 1912
                 5 Treron curvirostra pegus Oberholser, 1912
                 6 Treron curvirostra smicrus Oberholser, 1912
                 7 Treron curvirostra hypothapsinus Oberholser, 1912
                 8 Treron curvirostra nasica Schlegel, 1863
                 9 Treron curvirostra erimacrus Oberholser, 1924