Abstract: Peking Man, originally named Sinanthropus pekinensis and now known as Homo erectus pekinensis, was among the best documented extinct hominids before the catastrophic loss of almost all the material in 1941. The only diagnostic specimens to survive from the original excavations are some teeth in the paleontological collections of Uppsala University, Sweden (PMU). Here we report on the discovery of a new tooth in the PMU collection with notes on the history of the three previously known teeth. Together they represent the first four specimens of Peking Man ever collected.

Key words: Peking Man; Zhoukoudian; Tooth; Uppsala University