Infraorder Platyrrhini Geoffroy Saint-Hilaire, 1812 see Parvorder Platyrrhini Geoffroy Saint-Hilaire, 1812
Count: [g†g] 2f;16g; †23g;21s
   Family Atelidae Gray, 1825
  Count: [g†g] 9g; †13g;11s
     Subfamily Atelinae Gray, 1825
    Count: [g†g] 4g; †4g;3s
       1.1 Genus Ateles Geoffroy Saint-Hilaire, 1806 - spider monkeys
      Count: -
       1.2 Genus †Caipora Cartelle & Hartwig, 1996
      Count: †1s
       2.1 Genus Alouatta Lacépède, 1799 - howler monkeys
      Count: -
       2.2 Genus †Stirtonia Hershkovitz, 1970
      Count: -
       2.3 Genus †Protopithecus Lund, 1838
      Count: †1s
       2.4 Genus †Paralouatta Rivero & Arredondo, 1991
      Count: †1s
       3 Genus Lagothrix Geoffroy, 1812 - woolly monkeys
      Count: -
       4 Genus Brachyteles Spix, 1823 - woolly spider monkey, muriqui
      Count: -