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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Porodiscida Diam Fig Stauralastrum rhopalophorum sp Fig Dicranastrum cornutum sp Fig Hagiastrum mosis sp Fig Hagiastrum mosis sp Lateral view from the edge Fig Hagiastrum buddh sp Fig Stauralastrum cruciforme sp in glycerine The central capsule contains large central nucleus