1. Agassiz, J.L.R., 1833–1844. Recherches sur les Poissons Fossiles. Tome 3 concernant l’histoire de l’ordre des Placoïdes. Imprimerie Petitpierre, Neuchâtel 390 + 34 pp.
2. Microvertebrates from the classic Rhaetian bone beds of Manor Farm Quarry, near Aust (Bristol, UK);Allard;Proceedings of the Geologists’ Association,2015
3. Vallis Vale Limestone Quarries;Anonymous;The Quarry,1898
4. Old Mendip;Atthill,1984
5. Lower Silurian distal shelf storm-induced turbidites in the Welsh Borders: sediments, tool marks and trace fossils;Benton;Journal of the Geological Society, London,1981