New calcareous dinoflagellates from the Palaeogene of the South Atlantic Ocean (DSDP Site 357, Rio Grande Rise)
Abstract. The new calcareous dinoflagellate taxa Bitorus truncus n.sp., Calcigonellum ansatum n.sp. and Fuettererella fungiforma n.sp. are formally described on the basis of Eocene and Oligocene samples from DSDP Site 357 (western South Atlantic Ocean).