mollusc shells

Many discoveries at the archaeological site of Con Moong cave
Con Moong Cave in Mo Village, Thanh Yen Commune, Thach Thanh District (Thanh Hoa) has an absolute height of 147m, a relative altitude of 32m, located in the limestone mountains of
Discovering many relics of ancient Vietnamese people
The excavation results show that the stratum of Con Moong cave is 9.5m thick, consists of 10 different structural layers, found working tools, animal bones, mollusc shells, quartz