Three classifications

1. Five "natural" groups:

   • Lemuriformes - Madagascar lemurs
   • Lorisiformes - loris
   • Tarsiiformes - tarsiers
   • Platyrhini - New World monkeys
   • Catarhini - Old World monkeys, apes, and humans

2. Two suborders:

   • Prosimii (prosimians) - lemurs, loris, and tarsiers
   • Antropoidea (simians) - monkeys, apes, and humans

3. In recignition that phylogenetically tarsiers are closer to simians than to lemurs and loris:

   • Strepsirrhini - strepsirrhine primates with a moist rhinarium ("wet-nosed" primates): lemurs and loris
   • Haplorrhini - haplorrhine primates lacking rhinarium ("dry-nosed" primates): tarsiers and higher primates

Primates taxonomy and species

• Haplorrhini (simian)
  • Simiiformes
    • Catarrhini (Old World monkey, great apes, gibbons)
      • Homo sapiens (human)
      • Gorilla gorilla (Western lowland gorilla)
      • Macaca fascicularis (crab-eating macaque)
      • Macaca fuscata (Japanese macaque)
      • Macaca mulatta (rhesus macaque)
      • Pan troglodytes (common chimpanzee)
      • Papio anubis (olive baboon)
      • Pongo abelii (Sumatran orangutan)
    • Platyrrhini (New World monkey)
  • Tarsiiformes
    • Tarsiidae
      • Tarsius syrichta (Philippine tarsier)
• Strepsirrhini (prosimian)
  • Chiromyiformes
    • Daubentoniidae (aye-ayes)
      • Daubentonia madagascariensis (aye-aye)
    • Lorisidae (lorises)
  • Lemuriformes
    • Cheirogaleidae (dwarf and mouse lemurs)
    • Indriidae (lemurs, sifakas)
    • Lemuridae (lemurs)
    • Lepilemurida (lemurs)
  • Lorisifirmes
    • Galagidae (galagos)
  • Palaeopropithecus
• Unclassified