Ward, D.J. (1983)
Additions to the fish fauna of the English Palaeogene. 4. A new batoid genus from the Bracklesham Group of Selsea, Sussex. Tertiary Research, 5(2), 105–114
Kemp, D.J. & Kemp, L. & Ward, D.J. (1990)
An Illustrated Guide to the British Middle Eocene Vertebrates. Privately published, London, 59 pp.
Kent, B.W. (1999)
Part 3. Rays from the Fisher/Sullivan Site. In R.E. Weems(ed.), Fossil Vertebrates and Plants from the Fisher/Sullivan Site(Stafford County): A Record of Early Eocene Life in Virginia. Virginia Division of Mineral Resources 152: 39–51