Final answer:
Old World monkeys belong to the superfamily Cercopithecoidea, which includes cheek pouch monkeys and leaf-eating monkeys, with macaques as an example species. They are distinct from New World monkeys and have unique anatomical features like narrow, downward-pointing nostrils.
Step-by-step explanation:
The superfamily that comprises the group of Old World monkeys is called Cercopithecoidea. Old World monkeys, found throughout Africa and Asia, are part of the Catarrhini infraorder which also includes apes and humans. This group is distinct from New World monkeys (Platyrrhini) of Central and South America. The Cercopithecoidea contains two main groups: cheek pouch monkeys (Cercopithecinae) and leaf-eating monkeys (Colobinae), both of which have tails, unlike their cousins the apes and humans. The Old World monkeys possess narrow, downward-pointed nostrils and some exhibit sexual dimorphism, significant size differences between males and females. An example of Old World monkeys are species of macaques, which are part of the Cercopithecinae group.