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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Astrosphrida Diam Fig Echinomma toxopneustes sp Fig Echinomma sphrechinus sp Fig Actinomma denticulatum sp Fig Actinomma pachyderma sp The half of the cortical shell is removed Fig Actinomma pachyderma sp Fig Actinomma capillaceum sp Fig Actinomma arcadophorum sp part