Robert A. DePalma,^1,2 David A. Burnham,^2,* Larry D. Martin,^2,** Peter L. Larson,³ Robert T. Bakker<sup>4

1</sup>1Department of Vertebrate Paleontology, The Palm Beach Museum of Natural History, Fort Lauderdale, F
²2University of Kansas Biodiversity Institute, Lawrence, Kansas
³3Black Hills Institute of Geological Research, Hill City, South Dakota
⁴4Houston Museum of Nature and Science, Houston, Texas; e-mail: dinosaur@ku.edu

^*Corresponding author.
^**Deceased at time of publication.