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 Thinocoridae Gray, 1845 - seedsnipes
           Genus Thinocorus Eschscholtz, 1829
             Thinocorus rumicivorus Eschscholtz, 1829 - least seedsnipe
               1 Thinocorus rumicivorus pallidus Salvadori & Festa, 1910
               2 Thinocorus rumicivorus cuneicauda (Peale, 1848)
               3 Thinocorus rumicivorus bolivianus Lowe, 1921
               4 Thinocorus rumicivorus rumicivorus Eschscholtz, 1829