ACKNOWLEDGMENTS
We are extremely grateful for our collaboration with, and the continuing support and encouragement of, the Département de Paléontologie et d'Anthropologie Biologique, Université d'Antananarivo, Madagascar. We also acknowledge the long-time support of Dr. Gisèle Ravololonarivo Randria (former Head of the Palaeontology Laboratories), who recently passed away at too young an age. We thank the National Geographic Society for their extensive support of the fieldwork associated with this project. Additional financial or logistical support for field and laboratory investigations was provided by our home institutions, The Field Museum, and the WWF (Worldwide Fund for Nature, Madagascar). We remain indebted to the Ministère de L'Enérgie et des Mines for authorizing field efforts and for continuing to facilitate our joint U.S.-Madagascar exploration, research and education program, through our collaboration between the AMNH, Université d'Antananarivo, Ministère de L'Enérgie et des Mines, and MICET (Madagascar). We thank Debbie Wagner for her excellent preparation of this specimen, Bill Simpson and Akiko Shinya for facilitating its transport to the AMNH for further study, and Lorraine Meeker for the photographs in . C.F.K. would like to thank Paul Barrett, Juan Cisneros, Jessica Cundiff, Michael Maisch, Maria Malabarba, Ricardo Martinez, Jaime Powell, Ana Maria Ribeiro, Chuck Schaff, Cesar Schultz, and Ray Symonds for their kind help and hospitality during his visits to their respective institutions.