ABSTRACT: The new foraminiferal species Buzasina antarctica n.sp. is described from the Upper Cretaceous (Turonian) from IODP Site U1512 drilled in the Great Australian Bight. Compared with the type species, the new species is characterized by its larger dimensions, greater number of chambers, and less embracing final chamber. It is the only representative of the genus Buzasina found thus far in the Cretaceous of the high austral latitudes.