1. Key Lab of Insect Evolution and Environmental Change, College of Life Sciences; Capital Normal University; Beijing China
2. Department of Paleobiology, National Museum of Natural History; Smithsonian Institution; Washington DC U.S.A.
3. Paleontological Institute, Russian Academy of Sciences; Moscow Russia
4. Department of Palaeontology; Natural History Museum; London U.K.
5. Department of Entomology and BEES Program; University of Maryland; College Park MD U.S.A.