Roth, P. H. (1974): Calcareous nannofossils from the northwestern Indian Ocean Leg 24, Deep Sea Drilling Project. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 24 (Djibouti, F.T.A.I. to Port Louis, Mauritius, May-June 1972), 969-994, georefid:1976-006198