Savtchenko, A.S. (1912)
Elasmobranchii mangyshlakskogo eocena [Elasmobranchii of the Eocene of Mangyshlak]. Zapiski Kievskogo obshchestva yestestvoispytatelei [Mémoires de la Société des Naturalistes de Kieff], 22 (2), 149–186 [in Russian]