1. The Micraster biostratigraphy of the Senonian White Chalk of Sussex, southern England;Drummond;Géologie Mediterraneene,1983
2. Turonian correlation and sequence stratigraphy of the Chalk in southern England;Gale,1996
3. Cretaceous;Hancock,1992
4. Geology of the country around Hitchin;Hopson;Memoir of the British Geological Survey, Sheet 221 (England & Wales),1996
5. Field Meeting: the Cretaceous of SE Devon, 14–16th March, 1986;Jarvis,1987