addax african buffalo alcelaphinae animal antilocapridae antilopinae barbary sheep biological classification bison blackbuck bos boselaphini bovid bovinae bovini brocket deer bubalus camel camelid capreolinae cervus cetartiodactyla chacoan peccary chevrotain choeropsis chordate collared peccary common duiker damaliscus deer dibatag dik-dik duiker eocene eutheria even-toed ungulate four-horned antelope gazelle gerenuk giant forest hog giraffe giraffidae grazing antelope grey rhebok hartebeest hippocamelus hippopotamidae hippopotamus hippotragus hirola impala johann karl wilhelm illiger klipspringer kting voar laurasiatheria llama mammal marsh deer moose moschiola mountain goat muntjac musk deer muskox neotragini neotragus nilgai odocoileus okapi oribi oromerycidae oryx ovis pampas deer peccary phacochoerus pig potamochoerus procapra pronghorn protoceratidae pygmy hog raphicerus reduncinae reedbuck reindeer roe deer ruminantia rupicapra saiga antelope saola strepsicerotini suidae suina tahr takin taurotragus tibetan antelope tragelaphus tragulus tufted deer water chevrotain water deer white-lipped peccary wildebeest