Fouilles archéologiques Fossile Feu Amas coquillier Shanxi Jixian Shizitan yizhe S29 didian fajue jianbao 山西吉县柿子滩遗址S29地点发掘简报 = The excavation of the Locality S29 of Shizitan Paleolithic Site in Jixian County, Shanxi