Abstract: U-series age determinations using conventional alpha spectrometry and high-precision mass spectrometry were carried on calcite outer cast of the hominid skull recovered from a cave in Tonglu County, Zhejiang Province. The results suggest a time period between 5 and 10ka as the best age esti- mate for this fossil hominid.

Key words: Tonglu hominid skull; U-series dating; Calcite