edited by R.T. Becker, Wesztfälische Wilhelms-Universität, Germany, P. Königshof, Forschungsinstitut und Naturmuseum Senckenberg, Germany, and C.E. Brett, University of Cincinnati, USA
edited by M.J. Hambrey, Aberystwyth University, Wales, P.F. Barker, British Antarctic Survey, UK, P.J. Barrett, Victoria University of Wellington, New Zealand, V. Bowman, University of Leeds, UK, B. Davies, Aberystwyth University, Wales, J.L. Smellie, University of Leicester, UK and M. Tranter, University of Bristol, UK