This limits aDNA study and exact aging of the remains.[2] Additionally, research is limited by a lack of artifacts. Unlike in the previously described cemeteries, grave goods are fairly uncommon. Red ochre was present in most graves, but other than this there were only a few scattered shells (from the Nile and Red Sea), one hippopotamus ivory bracelet, 3 pieces of limonite and one piece of malachite.[2][9]