[prepared for] seventh annual field conference of the Great Lakes Section--Society of Economic Paleontologists and Mineralogists, October 1-2, 1977 ; edited by John K. Pope and Wayne D. Martin ; sponsor, Department of Geology, Miami University
edited by John Chadwick (Department of Geology and Environmental Geosciences, College of Charleston, Charleston, South Carolina), Steve Jaume' (Department of Geology and Environmental Geosciences, College of Charleston, Charleston, South Carolina)