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Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Tympanida et Androspyrida Diam Fig Toxarium circospyris sp Fig Amphispyris sternalis sp Fig Amphispyris costata sp Fig Amphispyris thorax sp Fig Amphispyris subquadrata sp Fig Amphispyris quadrigemina sp Fig Amphispyris toxarium sp Fig Tricolospyris baconiana sp Fig