After McKenna & Bell, 1997

<==o †Oreopithecidae Schwalbe, 1915
   |-- †Oreopithecus bambolii Gervais, 1872
   `--o †Nyanzapithecus Harrison, 1986 [Rangwapithecus Andrews, 1974] [treated as proconsulids by Harrison, 2002]
      |-- †N. vancouveringorum (Andrews, 1974) [Rangwapithecus vancouveringi Andrews, 1974]
      |-- †N. pickfordi Harrison, 1986
      `-- †N. harrisoni Kunimatsu, 1997

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