Dalinkevicius, J.A. (1935)
On the fossil fishes of the Lithuanian Chalk. I. Selachii.
Mémoires de la Faculté des Sciences de l'Université de Vytautas le Grand, 9: 243–305, 7 fig., 5 pl.
Edwards, P. (1976)
Fossil sharks (Pisces, Selachii) from the Codell Sandstone, Pueblo County, Colorado.
Mountain Geologist, 13(2), 67–70