Leading impression: T. gibbosula and C. rustica shells found in layer 4c on the cave in Morocco, which were beads from exactly what is now generally known as the oldest jewelry on earth. Source: A. Bouzouggar, INSAP, Morocco / Karen Loise van Niekerk isn't going to work for, check with, https://webcastlist.com/story19589261/ancient-ornamentation-an-overview