Author Affiliations +
G. KLAPPER,1 T. T. UYENO,2 D. K. ARMSTRONG,3 P. G. TELFORD4
1Emeritus, Department of Geoscience, The University of Iowa; 1010 Eastwood Road, Glencoe, Illinois 60022–1125, < >, g-klapper@northwestern.edu
2Emeritus, Geological Survey of Canada, 3303–33 St NW, Calgary, Alberta, T2L 2A7, < >, TUyeno@NRCan.gc.ca
3Ontario Geological Survey, 933 Ramsey Road, Sudbury, Ontario, P3E 6B5, Canada,
4Departmental Associate, Department of Palaeobiology, Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario, M5S 2C6, Canada