Gasperi, Joseph T.; Kennett, James P. (1991): Isotopic evidence for depth habitat change within the planktonic foraminiferal lineage Globorotalia (Menardella); late Miocene western Equatorial Pacific. Geological Society of America (GSA), Boulder, CO, United States, In: Anonymous, Geological Society of America, 1991 annual meeting, 23 (5), 337, georefid:1996-016838