Class Mammalia Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Cercopithecidae Gray, 1821 - Old World monkeys Subfamily Cercopithecinae Gray, 1821 Genus Erythrocebus Trouessart, 1897 - patas monkey Erythrocebus patas (Schreber, 1775) - patas monkey