- ↑ Berg 1940.
- ↑ Wilson et Märss.
- Berg, L. S. 1940. "Sistema ryboobraznykh i ryb, nyne živuščikh i iskopaemykh" ["Classificatio piscium, amborum recentium et fossilium."] Trudy Zoologicheskogo Instituta, Akademiya Nauk SSSR (Leninopili) 5: 1-431.
- Märss, Tiiu, M. V. H. Wilson, et R. Thorsteinsson. 2002. "New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) taxa established in the Silurian and Lower Devonian of the Canadian Arctic Archipelago." Proceedings of the Estonian Academy of Sciences, Geology 51 (2): 88–120.
- Wilson, Mark V. M. et Tiiu Märss. 2012. "Anatomy of the Silurian thelodont Phlebolepis elegans Pander. Estonian Journal of Earth Sciences 61 (4): 261–76. doi:10.3176/earth.2012.4.06.