Affiliation: | 1. Department of Natural History and Planetary Sciences, Hokkaido University, Sapporo 060-0810, Japan;2. Hokkaido University Museum, Hokkaido University, Sapporo 060-0810, Japan;3. Institute of Paleontology and Geology, Mongolian Academy of Sciences, Ulaanbaatar 15160, Mongolia;4. Department of Biological Sciences, University of Alberta, T6G 2E9, Canada |