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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Podocampida Phormocampida et Lithocampida Diam Fig Lithocampe ovata sp Fig Lithocampe urceolata sp Fig Lithocampe diploconus sp Fig Dictyomitra eurythorax sp Fig Eucyrtidium teuscheri sp Fig Lithostrobus cornutus sp Fig Eucyrtidium btschlii sp Fig Cyrtocapsa compacta