ABSTRACT
Fred Broadhurst, University of Manchester, UK: 108, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127.
Sam Ciurca, Rochester, New York, USA: 72, 75, 81, 85.
Simon Conway Morris, University of Cambridge, UK: 34, 36, 37, 45, 46.
