sinanthropus (sī-nān'thrə-pəs, sĭ-, sī'nān-thrō'pəs, sĭn'ān-) An extinct hominid postulated from bones found in China in the late 1920s and originally designated Sinanthropus pekinensis in the belief that it represented a species evolutionarily preceding humans. Sinanthropus is now classified as Homo erectus. Also called Peking man. See more at Homo erectus. |