1. Tertiary Leaf Beds in the Isle of Mull;Argyll;Q J geol Lond,1851
2. Bailey D. B. Clough T. C. Wright W. B. Richey J. E. Wilson G. V. (1924) Mem. Geol. Surv, Tertiary and post-Tertiary geology of Mull, Loch Aline and Oban (H.M.S.O, Edinburgh).
3. Ages for the Tertiary of East Greenland;Beckinsale;Bull geol Soc Denmark,1970
4. Sedimentation, petrogenesis and radioisotopic age of the Cretaceous Fuller's Earth of southern England;Cowperthwaite;Clay Minerals,1972
5. Genozoic chronology of the Sierra Nevada, California;Dalrymple;Univ Calif Publ in Geol Sci,1964