Richard J. Butler

Richard J. Butler

Bob Walters with James O. Farlow, David W. E. Hone, Casey M. Holliday, Ralph E. Chapman, Mary H. Schweitzer, Kenneth Carpenter, Paul M. Barrett, Bruce H. Tiffney, Karen Chin, Nicholas R. Geist, Jack Horner, Elizabeth Rega, Kenneth J. McNamara, Willem J. Hillenius, Devon E. Quick, Nicholas Fraser, Michael K. Brett-Surman, Thomas R. Holtz, David A.E. Spalding, William A. S. Sarjeant, Hugh Torrens, Hans-Dieter Sues, Edwin H. Colbert, David D. Gillette, Ralph E. Molnar, Corwin Sullivan, Xing Xu, David Dilkes, John R. Hutchinson, Lawrence M. Witmer, Emily Buchholtz, James I. Kirkland, Art Andersen, Brent H. Breithaupt, Neffra Matthews, Mark Marshall, Douglas Henderson, J. Michael Parrish, Michael J. Benton, Darren Naish, Adam M. Yates, Jeffrey A. Wilson, Kristina Curry Rogers, Peter M. Galton, Peter J. Makovicky, Richard J. Butler, Terry D. Jones, Darla K. Zelenitsky, R.E.H. Reid, Donald M. Henderson, John Long, John Ruben, Amy E. Harwell, Gregory S. Paul, Matthew T. Carrano, J. David Archibald, Daniel J. Chure, Kevin Padian, Elizabeth K. Burton