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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Pylonida Diam Fig Monozonium alatum sp Dorsal view Fig Apical view Fig Dizonium pleuracanthum sp Fig Dizonium stauracanthum sp Fig Trizonium tricinctum sp Dorsal view Fig Lateral view Fig Apical view Fig Amphipyle tetraceros sp Dorsal view Fig Amphipyle callizona sp