1. Vortzeitliche Lebensspuren;Abel,1935
2. Principles of Palaeoecology;Ager,1963
3. The Jurassic System in Great Britain;Arkell,1933
4. The geology of the country around Weymouth, Swanage, Corfe, and Lulworth;Arkell;Geol. Surv. Gt. Brit., Mem. Geol. Surv. Gt. Brit., Engl. Wales,1947
5. The Yons Nab Beds of the Middle Jurassic of the Yorkshire Coast;Bate,1959