1. First Record of the Extinct Shark Squalicorax falcatus from California;Applegate;Bull. Sth. Calif. Acad. Sci.,1964
2. Fossil Shark and Fish Remains of North America;Case,1967
3. Transgressions of the Cretaceous Sea in South-West England;Hancock;Trans. Ussher, Soc.,1969
4. The Stratigraphy of the Actinocamax plenus Subzone (Turonian) in the Anglo-Paris Basin;Jefferies;Proc. Geol. Ass.,1963
5. The Cretaceous Rocks of Britain. Vol. 2. The Lower and Middle Chalk of Britain;Jukes-Brown;Mem. geol. Surv. U.K.,1903