Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
       [Order] Galliformes Temminck, 1820 - fowl
         phasianoids see Superfamily Phasianoidea Vigors, 1825
           Family Phasianidae Vigors, 1825 - turkeys, grouse, pheasants, partridges
             Subfamily Perdicinae Bonaparte, 1838
               Genus Tetraogallus Gray, 1832
                 Tetraogallus tibetanus Gould, 1854 - Tibetan snowcock
                   1 Tetraogallus tibetanus tschimenensis Sushkin, 1926
                   2 Tetraogallus tibetanus tibetanusᵀ Gould, 1854
                   3 Tetraogallus tibetanus aquilonifer Meinertzhagen & Meinertzhagen, 1926
                   4 Tetraogallus tibetanus yunnanensis Yang & Xu, 1987
                   5 Tetraogallus tibetanus henrici Oustalet, 1891
                   6 Tetraogallus tibetanus przewalskii Bianchi, 1907