1. Division of Natural History Sciences, Faculty of Science, Hokkaido University, N10 W8, Sapporo 060-0810, Japan
2. Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
3. The Centre for Academic Resources and Archives, Tohoku University Museum, Tohoku University, Aramaki Aza Aoba 6-3, Aoba-ku, Sendai, Miyagi 980-8578 Japan
4. Department of Invertebrate Zoology, Faculty of Biology and Soil Science, St. Petersburg State University, St. Petersburg 199034, Russia
5. eDepartment of Palaeontology, Faculty of Earth Sciences, Geography and Astronomy, Geozentrum, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria