Bolli, H. M. (1978): Cretaceous and Paleogene Calcisphaerulidae from DSDP Leg 40, southeastern Atlantic. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Bolli, H. M., Ryan, W. B. F., McKnight, B. K., Kagami, H., Melguen, M., Siesser, W. G., Longoria, J. F., Decima, F. P., Foresman, J. B., Hottman, W. E., Natland, J. H. (editor), Leg 40; Cape Town, South Africa to Abidjan, Ivory Coast, December 1974-February 1975, 40, 819-837, georefid:1978-046849