Stephen Jay Gould, Robert J. Schadewald, Stephen G. Brush, C. Loring Brace, David M. Raup, Alice Beck Kehoe, George O. Abell, Thomas H. Jukes, John R. Cole, Russell F. Doolittle, Andrew J. Petto, John W. Patterson, Stephen D. Schafersman, Joel L. Cracraft, Frederick Edwords