Final answer:
The modern approach to primate classification involves dividing them into suborders, infraorders, and superfamilies based on physical characteristics and evolutionary relationships. Strepsirhini includes lemurs and lorises, while Haplorhini is divided into Platyrrhini and Catarrhini. Catarrhini further divides into Hominoidea, which includes gibbons, great apes, and humans.
Step-by-step explanation:
The modern approach to primate classification involves dividing primates into suborders, infraorders, and superfamilies based on their physical characteristics and evolutionary relationships.
The suborder Strepsirhini includes lemurs and lorises, which have unique anatomical traits like a grooming claw and a toothcomb. They are found in the Old World, including Africa, Asia, and Europe.
The suborder Haplorhini is further divided into two infraorders: Platyrrhini and Catarrhini. Platyrrhini, or New World monkeys, are found in Central and South America and are characterized by their rounded nostrils and prehensile tails. Catarrhini, or Old World monkeys, are found in Africa and Asia and have downward-facing narrow nostrils. Catarrhini further divides into the Superfamily Hominoidea, which includes gibbons, great apes, and humans. Hominoidea is characterized by its lack of tails and terrestrial lifestyle.