1. Department of Biology, University of Toronto Mississauga, Ontario, Canada
2. Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, Germany
3. Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, New South Wales, Australia
4. International Center of Future Science, Dinosaur Evolution Research Centre, Jilin University, Changchun, People's Republic of China