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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Tripocalpida Phnocalpida et Cyrtocalpida Diam Fig Tripterocalpis phylloptera sp Fig Tripterocalpis conoptera sp Fig Tripterocalpis ogmoptera sp Fig Tripterocalpis ogmoptera sp group of confluent pores more enlarged Fig Tripterocalpis ogmoptera sp Central capsule In the centre