Klipdrift Shelter, southern Cape, South Africa: preliminary report on the Howiesons Poort layers Samantha S. Mienies, Jerome Reynard, Magnus M. Haaland, Petro Keene, Simon J. Armitage, Emmanuel Discamps, Sarah Wurz, Katja Douze, Karen L. van Niekerk, Christopher S. Henshilwood, R.F. Rifkin, A. Delagnes • 2014