Mutter, R.J. & Iturralde-Vinent, M.A. & Fernandez Carmona, J. (2005)
The first mesozoic Caribbean shark from the Turonian of Cuba: Ptychodus cyclodontis sp. nov. (? Neoselachii). Journal of Vertebrate Paleontology, 25(4), 976–978
DOI: 10.1671/0272-4634(2005)025[0976:TFMCSI]2.0.CO;2
Carrillo-Briceño, J.D. (2013)
Chondrichthyans from the Upper Cretaceous of Venezuela: Diversity and Palaeobiogeographic implications [Abstract]. In SCHWARZ, C. & KRIWET, J.(editors): 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th–10th, 2013: 13