fought for fair fossil-collecting regulations on public lands, and worked with government committees to find common ground as a representative of professional paleontologists, as well as publishing scientific papers. On the other hand, some academic paleontologists object to any organization's commercial selling of fossils, and find Larson's company to be the prime example of this activity. The difference of opinion about the benefits and drawbacks of selling fossils has been a topic for more than 100 years, thanks to the rich history of collaborations between academic and professional paleontologists throughout the 20th century. These collaborations created the primary collections that introduced the public to dinosaurs, but also introduced the idea of fiscal value to resources that some say fall into the public domain. Those academics who reject the practice claim that the high prices that fossils like "Sue" bring in the marketplace prevent public institutions from competing, as private landowners see their fossils as "crops" and are less likely to donate them. Larson has gained supporters in academia, including John Ostrom of Yale University and Robert Bakker, Curator of Paleontology for the Houston Museum of Natural Science. Himself a colorful and sometimes controversial figure, Bakker has backed Larson as a responsible paleontologist. Selected works Journal articles Larson,P and Frey,E. "Sexual Dimorphism in the Abundant Upper Cretaceous Theropod, T. rex." Journal of Vertebrate Paleontology 12, Abstract 96, 3 September 1992. Popular books Larson, P. and Donnan, K. "Rex Appeal". Montpelier, VT: Invisible Cities Press, 2002. Larson, P. and Carpenter, K. "Tyrannosaurus Rex, the Tyrant King (Life of the Past)". Indiana University Press, 2008. See also Sue Hendrickson, discoverer and namesake of the T. rex "Sue" Dinosaur renaissance Paleontology in South Dakota References External links Collaborator Profile, University of Manchester Paleontology Black Hills Institute of Geological Research Inc. website Part 1: Wagon Ho , Interview by Bernie Harberts with Pete and Neal Larson 1952 births Living people American paleontologists People from Pennington County, South Dakota Businesspeople from South Dakota South Dakota School of Mines and Technology alumni People from Mission, South Dakota