Final answer:
The infraorder Catarrhini branches off into two superfamilies: Cercopithecoidea and Hominoidea.
Step-by-step explanation:
The infraorder Catarrhini branches off into two superfamilies: Cercopithecoidea and Hominoidea. Cercopithecoidea includes cheek pouch monkeys (Cercopithecinae) and leaf-eating monkeys (Colobinae), while Hominoidea includes gibbons, chimpanzees, gorillas, orangutans, and humans.