Class Mammalia Linnaeus, 1758 - mammals
   Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
     Family Bovidae Gray, 1821 - antelope, cattle, bison, buffalo, goats, and sheep
       Subfamily Alcelaphinae Rochebrune, 1883
         1 Genus Alcelaphus Blainville, 1816 - hartebeest
         2 Genus Connochaetes Lichtenstein, 1814 - wildebeests
         3 Genus Damaliscus Sclater & Thomas, 1894 - sassabies
         4 Genus Sigmoceros Heller, 1912 - Lichtenstein's hartebeest