Marie-Claire Koschowitz1, Christian Fischer2, Martin Sander3. 1. Division of Paleontology, Steinmann Institute for Geology, Mineralogy and Paleontology, University of Bonn, Nussallee 8, 53115 Bonn, Germany. Institute for Zoology and Anthropology, Department of Morphology, Systematics and Evolutionary Biology with Zoological Museum, Georg-August-Universität Göttingen, Berliner Strasse 28, 37073 Goettingen, Germany. m.koschowitz@uni-bonn.de. 2. Institute for Zoology and Anthropology, Department of Morphology, Systematics and Evolutionary Biology with Zoological Museum, Georg-August-Universität Göttingen, Berliner Strasse 28, 37073 Goettingen, Germany. 3. Division of Paleontology, Steinmann Institute for Geology, Mineralogy and Paleontology, University of Bonn, Nussallee 8, 53115 Bonn, Germany. Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA.