1. Anderson F. W. Dunham K. C. 1966. The Geology of Northern Skye. Mem. geol. Surv. U.K., + 216pp. Edinburgh.
2. Association de nannofossiles calcaires du Jurassique d’Aquitaine et du Bassin Parisien (France);Amezieux;Mem. Bur. Rech. Géol. Min.,1972
3. On Jurassic Coccoliths: A tentative zonation of the Jurassic of Southern England and North France;Barnard;Eclog. geol. Helv.,1974
4. Taxonomic problems in the study of coccoliths;Black;Palaeontology,1968
5. Black M. 1972. British Lower Cretaceous Coccoliths. 1: Gault Clay. Palaeontogr. Soc. [Monogr.], 1–48.