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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Orosphrida Diam Fig of this Plate has no number by mistake it is at the top in the middle Fig Oroplegma diplosphra sp The entire shell enveloped by an outer mantle of spongy framework Fig Oroplegma giganteum sp small piece of the spongy framework Fig Oroplegma spongiosum