Seidenkrantz, M.-S. (1995). Cassidulina teretis Tappan and Cassidulina neoteretis new species (Foraminifera): stratigraphic markers for deep sea and outer shelf areas. Journal of Micropalaeontology. 14(2): 145-157.
<i>Cassidulina teretis</i> Tappan and <i>Cassidulina neoteretis</i> new species (Foraminifera): stratigraphic markers for deep sea and outer shelf areas