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机译:
Natural History Museum, Department of geology, University of Oslo, PO Box 1172 Blindern, 0318 Oslo, Norway;
Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan;
P.P. Shirshov Institute of Oceano logy, Russian Academy of Sciences, Nakhimovsky Prospect 36, 117883 Moscow, Russia;
Radiolaria; North Atlantic; stratigraphy; Amphimelissa setosa; paleoecology; morphology;