ACKNOWLEDGMENTS
This specimen would never have been found if it were not for the dedicated hard work of the volunteers of the Pony Express digs at Thomas Farm, especially Catherine L. Carr, who found this specimen and the FLMNH staff and students running these digs. They include B. Albright, H. Evans, M. Franc, R. Hulbert, S. and S. Hutchens, J. Labs-Hochstein, B. MacFadden, R. McCarty, J. Meachen-Samuels, G. Morgan, J. O’Sullivan, A. Poyer, D. Ruez, E. Simons, B. Shockey, and M. Smith. I would like to thank D. Prothero for sharing work in press and encouragement that made this possible. For assistance with collections in their care I would like to thank R. Hulbert (FLMNH), C. Norris (AMNH), and J. Galkin (AMNH).