1. Frontiers Science Center for Deep Ocean Multispheres & Earth System Key Lab of Submarine Geosciences & Prospecting Techniques MOE & College of Marine Geosciences, Ocean University of China Qingdao 266100 China
2. Laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science & Technology (Qingdao) Qingdao 266237 China
3. Department of Palaeobiology Swedish Museum of Natural History Box 50007 SE‐104 05 Stockholm Sweden
4. State Key Laboratory of Continental Dynamics Shaanxi Key Laboratory of Early Life & Environments Department of Geology Northwest University Xi'an 710069 China