Hulsbos, R. E., Kroon, D., Jansen, H. S. M. and van Hintem, J. E., 1989: Lower Eocene Benthic Foraminifera and Paleoenvironment of the Outer Vøring Plateau, Norwegian Sea (DSDP Site 338)
micropaleontology Vol. 35, No. 3 (1989), pp. 256-273
18 pp. Plate 3, Fig. 3