Kriwet, J. & Soler-Gijón, R. & López-Martínez, N. (2007)
Neoselachians from the upper Campanian and lower Maastrichtian (Upper Cretaceous) of the southern Pyrenees, northern Spain.
Palaeontology, 50(5), 1051–1071 DOI: 10.1111/j.1475-4983.2007.00695.x