1. Department of Geology University of Malaya Kuala Lumpur Malaysia
2. Laboratory of Atlantic Geology, Shirshov Institute of Oceanology Russian Academy of Sciences Moscow Russia
3. Department of Nature Museum of the World Ocean Kaliningrad Russia
4. Research and Education Center, Borissiak Paleontological Institute Russian Academy of Sciences Moscow Russia
5. Department of Geology Kent State University Kent Ohio USA
6. Paleoceanography Research Group (PoRIG), Faculty of Science and Marine Environment Universiti Malaysia Terengganu Kuala Nerus Terengganu Malaysia