Haplorhini Temporal range: Palaeocene – Recent
Common squirrel monkey (Saimiri sciureus)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Suborder:	Haplorhini

The haplorhines, the "dry-nosed" primates (the Greek name means "simple-nosed"), are members of the Haplorhini clade: the prosimian tarsiers and all of the true simians. The simians are the catarrhines (Old World monkeys and apes, including humans) and the platyrrhines (New World monkeys).

• Suborder Haplorrhini: tarsiers, monkeys and apes
  • Infraorder Tarsiiformes
    • Family Tarsiidae: tarsiers
  • Infraorder Simiiformes
    • Parvorder Platyrrhini: New World monkeys
      • Family Callitrichidae: marmosets and tamarins
      • Family Cebidae: capuchins and squirrel monkeys
      • Family Aotidae: night or owl monkeys (douroucoulis)
      • Family Pitheciidae: titis, sakis and uakaris
      • Family Atelidae: howler, spider and woolly monkeys
    • Parvorder Catarrhini
      • Superfamily Cercopithecoidea: Old World monkeys
        • Family Cercopithecidae
      • Superfamily Hominoidea: apes
        • Family Hylobatidae: lesser apes (gibbons)
        • Family Hominidae: great (large) apes including humans

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