The designs seen on authentic bark paintings are traditional designs that are owned by the artist, or his "skin", or his clan, and cannot be painted by other artists. In many cases these designs would traditionally be used to paint the body for ceremonies or rituals, and also to decorate logs used in burials ceremonies. While the designs themselves are ancient, the medium of painting them on a piece of flattened bark is a relatively modern phenomenon, although there is some evidence that artists would paint designs on the bark walls and roofs of their shelters.
