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

Zharkov, M.P. & Glikman, L.S. & Kaplan, A.A. & Stelnykova, N.I. (1976)
On the age of the Paleogene of Kaliningrad region. [in russian] Proceedings of the USSR Academy of Science, Geological Series, 1, 132–134

Udovischenko, N.I. & Nessov, L.A. (1987)
Sravnenye kompleksov khryashchevykh ryb i drugikh pozovonochnykh paleogena Pritashkentshkikh. Biostratigrafia, Paleontologia Osadochnogo Chekhla Ukrainy, 1987, 167–174

Zhelezko, V.I. (1988)
Zones on the Selachii of the Urals and West Kazakhstan Palaeogene. Ezhegodnik–1987. Informatsionnye materialy IGG AN SSSR. Sverdlovsk