Class [Mammalia] Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Cebidae Bonaparte, 1831 - New World monkeys Genus Lagothrix Geoffroy, 1812 - woolly monkeys Lagothrix flavicauda (Humboldt, 1812) - yellow-tailed woolly monkey see Oreonax flavicauda (Humboldt, 1812)