Class [Mammalia] Linnaeus, 1758 - mammals
Count: [*] 21o;132f;1061g;4316s; ‡1f;5g;38s
   Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
  Count: [*] 10f;77g;202s; ‡3s
     Family Bovidae Gray, 1821 - antelope, cattle, bison, buffalo, goats, and sheep
    Count: [*] 46g;132s; ‡2s
       Genus Ovis Linnaeus, 1758 - sheep
      Count: [*] 7s
         1 Ovis ammon (C. Linnaeus, 1758) - argali
        Count: -
         2 Ovis canadensis Shaw, 1804 - American bighorn
        Count: -
         3 Ovis dalli Nelson, 1884 - Dall sheep
        Count: -
         4 Ovis nivicola Eschscholtz, 1829 - Siberian bighorn
        Count: -
         5 Ovis orientalis Gmelin, 1774 - mouflon see Ovis aries orientalis Gmelin, 1774
        Count: -
         6 Ovis aries Linnaeus, 1758 - domestic sheep
        Count: -
         7 Ovis vignei Blyth, 1841 - urial
        Count: -