A. Arnaud-Vanneau, “Larger Benthic Foraminifera,” In P.-C. De Graciansky, J. Hardenbol, T. Jacquin and P. R. Vail, Eds., Mesozoic and Cenozoic Sequence Stratigraphy of European Basins, Special Publication, Society of Economic Paleontologists and Mineralogists, Tulsa, 1998, pp. 721-733. books.google.com/booksisbn=1862393060 - References - Scientific Research Publishing