Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080

Wynd, B.M. & Demar, D.G. & Wilson, G.P. (2020)
Euselachian diversity through the uppermost Cretaceous Hell Creek Formation of Garfield County, Montana, USA, with implications for the Cretaceous-Paleogene mass extinction in freshwater environments. Cretaceous Research, 113, Article 104483
DOI: 10.1016/j.cretres.2020.104483

Montgomery, H. & Clark, S. (2016)
Paleoecology of the Gaddis site in the Upper Cretaceous Aguja Formation, Terlingua, Texas. Palaios, 31(7), 347–357
DOI: 10.2110/palo.2015.099

Cook, T.D. & Newbrey, M.G. & Brinkman, D.B. & Kirkland, J.I. (2014)
Euselachians from the freshwater deposits of the Hell Creek Formation of Montana. Geological Society of America, Special Paper, 503, 229–246
DOI: 10.1130/2014.2503(08)

Kirkland, J.I. & Eaton, J.G. & Brinkman, D.B. (2013)
Elasmobranchs from upper Cretaceous freshwater facies in southern Utah. In At the top of the Grand Staircase – The Late Cretaceous of southern Utah. LOEWEN, Alan L. TITUS & Mark A. (Eds.), Indian Univ. Press.: 153–194, fig. 9.1–9.22

Pearson, D.A. & Schaefer, T. & Johnson, K.R. & Nichols, D.J. & Hunter, J.P. (2002)
Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota. Geological Society of America Special Paper, 361, 145–167

Rowe, T. & Cifelli, R.L. & Lehman, T.M. & Weil, A. (1992)
The Campanian Terlingua local fauna, with a summary of other vertebrates from the Aguja Formation, Trans-Pecos Texas. Journal of Vertebrate Paleontology, 12(4), 472–493
DOI: 10.1080/02724634.1992.10011475

Bryant, L.J. (1989)
Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana. University of California Publications in Geological Sciences, 134, 1–107

Armstrong-Ziegler, J.G. (1978)
An aniliid snake and associated vertebrates from the Campanian of New Mexico. Journal of Paleontology, 52(2), 480–483

Langston, W. (1970)
A Late Cretaceous vertebrate fauna from the St. Marys River Formation in Western Canada. Royal Ontario Museum Life Sciences Miscellaneous Publications, 114–133

Estes, R. (1964)
Fossil vertebrates from the Late Cretaceous Lance Formation, Eastern Wyoming. University of California Publications in Geological Sciences, 49, 1–180