edited by Christopher G. Ingersoll, Jeffery A. Steevens, and Donald D. MacDonald; contributions by Christopher G. Ingersoll, Jeffery A. Steevens, Donald D. MacDonald, William G. Brumbaugh, Matthew R. Coady, J. Daniel Farrar, Guilherme R. Lotufo, Nile E. Kemble, James L. Kunz, Jacob K. Stanley, and Jesse A. Sinclair