This study discusses three species of Stylotrochus recently observed in small numbers in six cores from the southern Indian Ocean and seven in the Bellingshausen Basin. It describes their geographical and chronological distributions and relates them to

Radiolaria are marine siliceous microfossils used to reconstruct paleoceanographic and paleoclimatic events. This report presents a dataset obtained from radiolarian analysis for the biostratigraphic and paleoceanographic reconstructions of the submarine

The radiolarians are planktonic marine protozoans, which although be only one cell, are sophisticated and complex organisms. The Subclass Radiolaria is formed by two superorders: Trypilea and Polycystina, this last is the most studied, because its skeleton