Schneider, Cynthia E. (1993): Investigation of evolutionary processes in planktonic foraminifera using stable isotopic analysis. [University of California, Museum of Paleontology], Berkeley, CA, United States, In: Polly, Paul David (editor), Thordor, Jessica M. (editor), California paleontology conference, 1993, 14 (4, Suppl.), 13-14, georefid:1993-034683