Ward, D.J. (1973)
The English Palaeogene Chimaeroid fishes. Proceedings of the Geologists' Association, 84(3), 315–330
DOI: 10.1016/S0016-7878(73)80037-9

Ward, D.J. (1980)
The distribution of sharks, rays and chimaeroids in the English Palaeogene. Tertiary Research, 3(1), 13–19

Kemp, D.J. & Kemp, L. & Ward, D.J. (1990)
An Illustrated Guide to the British Middle Eocene Vertebrates. Privately published, London, 59 pp.