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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Zygospyrida et Tholospyrida Diam Fig Gorgospyris medusa sp Fig Gorgospyris medusetta sp From the basal side with the nine cortinar pores Fig Gorgospyris polypus sp Fig Gorgospyris schizopodia sp Fig Gorgospyris eurycolpos sp Fig Gorgospyris liriope sp Fig Tiarospyris