Tjalsma, R. C. (1977): Cenozoic foraminifera from the South Atlantic, DSDP Leg 36. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 36 (Ushuaia, Argentina to Rio de Janeiro, Brazil, April-May 1974), 493-517, georefid:1977-040602