The biological suborder Ruminantia this majority of the Artiodactyla including sheep, goats, camels, and other forms which have a complex stomach and ruminate their food.
Classifiation
ORDER CETARTIODACTYLA
Suborder Suina: pigs and peccaries
Suborder Tylopoda: camels and llamas
Suborder Whippomorpha: whales and hippopotamus
Suborder Ruminantia
Family †Amphimerycidae
Infraorder Tragulina (paraphyletic) Family †Prodremotheriidae Family †Hypertragulidae Family †Praetragulidae Family Tragulidae: chevrotains, 6 living species in 4 genera Family †Leptomerycidae Family †Archaeomerycidae Family †Lophiomerycidae Infraorder Pecora Family †Climacoceratidae Family Moschidae: musk deer, 4 living species in one genus Family Cervidae: deer, 49 living species in 16 genera Family Giraffidae: giraffe and okapi, 2 living species in 2 genera Family Antilocapridae: pronghorn, one living species in one genus Family Bovidae: cattle, goats, sheep, and antelope, 135 living species in 48 genera.