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

Brand, N.A. & Heckert, A.B. & Sanchez, I. & Foster, J.R. & Hunt-Foster, R.K. & Eberle, J.J. (2022)
New Late Cretaceous microvertebrate assemblage from the Campanian–Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications. Acta Palaeontologica Polonica, 67(3), 579–600
DOI: 10.4202/app.00934.2021

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