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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Orosphrida Astrosphrida et Liosphrida Diam Fig Orosphra huxleyii sp vel Oroscena huxleyii Fig piece of the network the bars of which contain partly an axial canal Fig Conosphra orthoconus sp Fig Conosphra platyconus sp Fig Conosphra plagioconus sp Fig Ethmosphra conosiphonia