Robert W. Scott is president of Precision Stratigraphy Associates, which provides quantitative solutions to stratigraphic problems and training in sequence stratigraphy, and he is also a research associate in the Geosciences Department, University of Tulsa. Dr. Scott was a research geologist at Amoco Production Company for 20 years. His experience is in Mesozoic and Cenozoic stratigraphy and paleontology. Prior to joining Amoco, he taught geology for eight years, first at the Waynesburg College, Pennsylvania, and then at the University of Texas at Arlington. His advance geology degrees are from the University of Kansas and the University of Wyoming.