Perch-Nielsen, K. (1977): Albian to Pleistocene calcareous nannofossils from the western South Atlantic, DSDP Leg 39. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 39 (Amsterdam, Neth. to Cape Town, S. Afr., Oct.-Dec. 1974), 699-823, georefid:1978-003298