on the skull and various other mammalian fossils unearthed around Dongjiang Bridge, and determined that all the fossils from the vicinity were likely deposited at around the same time, lived in the same region, and probably originate from the Upper Huangshan Formation, dating to 309 to 138 thousand years ago.

Direct uranium-thorium dating of various points on the skull yielded a wide range of dates, from 296 to 62 thousand years ago, likely a result of