1. School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
2. Department for geography and city studies, Al-Quds University, Jerusalem, Palestine
3. BLM Wyoming State Office, Cheyenne, Wyoming, USA
4. Section Paleontology, Institute of Geoscience, University of Bonn, Germany
5. Dinosaur Institute, Natural History Museum of Los Angeles County, Los Angeles, CA, USA