1. Department of Geology and Palaeontology, Natural History Museum of Geneva, 1208 Geneva, Switzerland
2. Palaeontological Research and Education Centre, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, Thailand
3. CNRS (UMR 8538), Laboratoire de Géologie de l’Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
4. Mineral Resources Office Region 1, Department of Mineral Resources, 414 moo 3, Sala, Ko Kha, Lampang 52130, Thailand
5. Dinosaur Research Unit, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, Thailand
6. Department of Biology, Faculty of Science, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, Thailand