1. Palynological investigations in the Jurassic of the North Sea region;Abbink;LPP Contributions Series,1998
2. Correlation of NW European Purbeck-Wealden (nonmarine Lower Cretaceous) as seen from the English type-areas
3. Arkell, W. J. 1957. Mesozoic Ammonoidea. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology, Part L, Mollusca 4, Cephalopoda, Ammonoidea. Geological Society of America and University of Kansas Press, Lawrence and New York, L341–L344.
4. Batten, D. J. 1982. Palynofacies and salinity in the Purbeck and Wealden of southern England. In: Banner, F. & Lord, A. R. (eds) Aspects of micropalaeontology. George Allen & Unwin, London, 278–308.
5. Chapter 20E. Upper Jurassic and Cretaceous miospores;Batten,1996