1. School of Archaeology, Research Laboratory for Archaeology and the History of Art, Dyson Perrins Building, University of Oxford, South Parks Road, Oxford OX1 3QY, UK.
2. Postgraduate Institute of Archaeology, 407 Bauddhaloka Mawatha, Colombo 00700, Sri Lanka.
3. Department of Archaeology, Sir Marcus Fernando Mawatha, Colombo, Sri Lanka.
4. Division of Geographic, Archaeological and Environmental Sciences, University of Bradford, Bradford BD7 1DP, UK.