[1] Univ Montpellier 2, Inst Sci Evolut Montpellier, ISEM, CNRS,UMR 5554,Lab Paleontol, F-34095 Montpellier 05, France
[2] Dept Mineral Resources, Bur Geol Survey, Paleontol Sect, Bangkok 10400, Thailand
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France