Genus Lufengpithecus is commonly referred to as Lufeng Ape or Lufengpithecus chiangmuanensis. It is an extinct hominoid species that lived during the Late Miocene epoch. Some of the synonyms for Genus Lufengpithecus include Lufengpithecus keiyuanensis, Lufengpithecus lufengensis, and Lufengpithecus lufengensis nankangensis. These synonyms are based on different geographical locations where fossils of this species have been discovered. Lufeng Ape is believed to be an ancestor of modern apes and humans. Its physical characteristics resemble those of orangutans, although some scientists believe it may be more closely related to gorillas. Lufeng Ape is an important species for understanding the evolution of hominoids.