Böhm, J. (1926)
Über tertiäre Versteinerungen von den Bogenfelser Diamantfeldern. Die Diamantenwüste Südwestafrikas, Bd. II: 55–87, pl. B, fig. 31, 33.

Andrews, S.M. & Gardiner, B.G. & Miles, R.S. & Patterson, C. (1967)
CHAPTER 26 Pisces In The Fossil Record. HARLAND, W.B. et al. (Eds.) 1967, London (Geological Society), pp: 627-683

Condamine, F.L. & Romieu, J. & Guinot, G. (2019)
Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences of the United States of America, 116(41), 20584–20590
DOI: 10.1073/pnas.1902693116