1. Department of Messel Research and Mammalogy, Senckenberg Research Institute, and Faculty of Biological Sciences, Institute for Ecology, Diversity and Evolution, Goethe University Frankfurt, Frankfurt am Main, Germany.
2. Department of Earth and Planetary Sciences and Peabody Museum of Natural History, Yale University, New Haven, Connecticut; and Division of Paleontology, American Museum of Natural History, New York, New York.
3. Florida Museum of Natural History, University of Florida, Gainesville, Florida.