Original: A group of fossil specimens was discovered in 1923-27 during excavations at Zhoukoudian ( Chou K ` ou-tien ) near Beijing ( written ` Peking ' before the adoption of the Pinyin romanization system ) , China .
Simplified: Peking Man , also called Sinanthropus pekinensis ( currently Homo erectus pekinesis ) , is a example of Homo erectus .