1. Institute of Geology and Paleontology, Faculty of Science, Charles University, Prague, Czech Republic
2. Institute of Geology, Czech Academy of Sciences, Prague, Czech Republic
3. Department of Geoscience, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok Campus, Jakarta, Indonesia
4. Department of Geological Sciences, Ohio University, Athens, OH, USA
5. Department of Earth and Planetary Sciences, Yale University, New Haven, CT, USA