Thomas D. Carr Wet Plate Tintype on Aluminum Dr. Thomas Carr is an Associate Professor of Biology, at Carthage College, Director of the Carthage Institute of Paleontology, and the Senior Scientific Advisor to the Dinosaur Discovery Museum.  His research focuses on the evolution and growth of Tyrannosaurus rex and its closest relatives. The goal of Dr. Carr's  field work is to understand the changes in sedimentation, flora, and fauna during the last 1.4 million years of the Age of Dinosaurs in the American West.  The badlands of Montana provide incredible localities for discovering T. rex specimens that can help expand the research database and allow his lab to reach new insights into the biology of the King of Dinosaurs.  Dr. Carr's team is a part of the great tradition of academic fossil collecting in the American West, where every discovery is curated in a public trust for the benefit of the generations of students and scientists downstream. His lab limits explorations to public lands, as a demonstration of their commitment to the proper stewardship of vertebrate fossils for the benefit of the American (and global) public.