Mammalia Linnaeus, 1758 - mammals
Artiodactyla Owen, 1848 - even-toed ungulates
see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
Bovidae Gray, 1821 - antelope, cattle, bison, buffalo, goats, and sheep
Cephalophinae Gray, 1872
Cephalophus Smith, 1827 - forest duikers
Cephalophus weynsi Thomas, 1901