Roegl, F. (1976): Danian Calcisphaerulidae of DSDP Leg 35, Site 323, Southeast Pacific Ocean. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 35 (Callao, Peru to Ushuaia, Argentina; Feb.-March 1974), 701-711, georefid:1977-006881