Subclass Avialae Gauthier, 1986 see Clade Avialae Gauthier 1986
   Infraclass Aves Linnaeus, 1758 see Subclass Aves Linnaeus, 1758
     Parvclass Neornithes Gadow, 1893 see Subclass Neornithes Gadow, 1893
       Cohort Neognathae Pycraft, 1900
         Subcohort Neoaves Sibley et al., 1988
           Division Terrestrornithes B.C. Livezey & R.L. Zusi, 2007
             Subdivision Dendrornithes Verheyen, 1961
               Section Anomalogonates Garrod, 1874
                 Subsection Coccyges Huxley, 1867
                   Superorder Psittacimorphae Huxley, 1867
                     Order Columbiformes Latham, 1790 - pigeons and allies
                       Suborder Pterocletes Boucard, 1876 - sandgrouse
                         1 Family Pteroclidae Bonaparte, 1831 - sandgrouse