Glikman, L.S. (1964)
(Sharks of Paleogene and their stratigraphic significance). «in russian». Nauka Press: 229 p., 76 fig., 31 pl. Moscou.

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

Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080