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
SCHUBERT, J.A. & WICK, S.L. & LEHMAN, T.M. (2017)
An Upper Cretaceous (middle Campanian) marine chondrichthyan and osteichthyan fauna from the Rattlesnake Mountain sandstone member of the Aguja Formation in West Texas. Cretaceous Research, 69: 6–33
DOI: 10.1016/j.cretres.2016.08.008