1. Department of Geology and Palaeontology, Muséum d'Histoire Naturelle, CP6434, 1211 Geneva 6, Switzerland
2. Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai District, Maha Sarakham 44150, Thailand
3. Palaeontological Research and Education Centre, Mahasarakham University, Khamriang, Kantarawichai District, Maha Sarakham, 44150, Thailand
4. Muséum National d'Histoire Naturelle, Centre de Recherche sur la Paléobiodiversité et les Paléoenvironnements, UMR7207, CNRS/MNHN/Paris6-UPMC, CP 38, 57 rue Cuvier, 75231 Paris Cedex 05, France
5. Savannakhet Dinosaur Museum, Science and Technology Office Savannakhet, Khanthabouly Road, Thamouang Village, Kaisonphomvihan District, PO Box 739, RDP Lao
6. Northeastern Research Institute of Petrified Wood and Mineral Resources, Nakhon Ratchasima Rajabhat University, Meuang, Nakhon Ratchasima 30000, Thailand
7. Sirindhorn Museum, Department of Mineral Resources, Sahatsakhan, Kalasin, 46140 Thailand