Iserbyt, A. & De Schutter, P.J. (2012)
Quantitative analysis of Elasmobranch assemblages from two successive Ypresian (early Eocene) facies at Marke, western Belgium. Geologica Belgica, 15(3), 146–153

Kriwet, J. & Engelbrecht, A. & Mörs, T. & Reguerocd, M. & Pfaff, C. (2016)
Ultimate Eocene (Priabonian) chondrichthyans (Holocephali, Elasmobranchii) of Antarctica. Journal of Vertebrate Paleontology, 36(4), Article e1160911
DOI: 10.1080/02724634.2016.1160911

Bazzi, M. & Campione, N.E. & Kear, B.P. & Pimiento, C. & Ahlberg, P.E. (2021)
Feeding ecology has shaped the evolution of modern sharks. Current Biology, 31(23), 5138–5148
DOI: 10.1016/j.cub.2021.09.028