ACKNOWLEDGMENTS

We are grateful for the time spent with the late Will Downs (Figure 5). We thank him for vigorous and enjoyable discussions in the field about the relationships of Chitarwata paleoenvironments to their fossil vertebrates, river rafting, as well as the political and cultural history of China. We thank L. Jacobs for his insightful review of this manuscript. A special thanks to Pakistan Museum of Natural History (PMNH), Islamabad, Pakistan, for logistical support of our fieldwork and to A.R. Rajpar (PMNH) and A. Zulfigar (Geological Survey of Pakistan) for field assistance at Zinda Pir Dome. Thanks as well to R.J. Holcombe, Department of Earth Sciences, University of Queensland, Australia, for academic use of GEOrient 9.2 to determine paleocurrent statistics and for plotting rose diagrams. This research was supported by National Geographic Grant 6402-99.