González-Barba, G. (2008)
Descripción de la asociación faunistica de elasmobranquios fósiles del conglomerado basal en las formaciones San Gregorio y el Cien (Oligoceno Temprano) de Baja California Sur, México. PhD Thesis, La Paz, Baja California Sur, México, Centro Interdisciplinario de Ciencias Marinas. xiii, 226 p

Reinecke, T. & Louwye, S. & Havekost, U. & Moths, H. (2011)
The elasmobranch fauna of the late Burdigalian, Miocene, at Werder-Uesen, Lower Saxony, Germany, and its relationships with Early Miocene faunas in the North Atlantic, Central Paratethys and Mediterranean. Palaeontos, 20, 1–170

Enault, S. & Cappetta, H. & Adnet, S. (2013)
Simplification of the enameloid microstructure of large stingrays (Chondrichthyes: Myliobatiformes): a functional approach. Zoological Journal of the Linnean Society, 169(1), 144–155
DOI: 10.1111/zoj.12059

Pimiento, C. & González-Barba, G. & Hendy, A.J.W. & Jaramillo, C. & Macfadden, B.J. & Montes, C. & Suareza, S.C. & Shippritt, M. (2013)
Early Miocene chondrichthyans from the Culebra Formation, Panama: a window into marine vertebrate faunas before closure the Central American Seaway. Journal of South American Earth Sciences, 42, 159–170
DOI: 10.1016/j.jsames.2012.11.005

Carrillo-Briceño, J.D. & Carrillo, J.D. & Aguilera, O.A. & Sanchez-Villagra, M.R. (2018)
Shark and ray diversity in the Tropical America (Neotropics)—an examination of environmental and historical factors affecting diversity. PeerJ, 6, Article e5313
DOI: 10.7717/peerj.5313

Cicimurri, D.J. & Knight, J.L. & Ebersole, J.A. (2022)
Early Oligocene (Rupelian) fishes (Chondrichthyes, Osteichthyes) from the Ashley Formation (Cooper Group) of South Carolina, USA. PaleoBios, 39, 1–38
DOI: 10.5070/P939056976