Brito, P.M. & Leal, M.E.C. & Gallo, V. (2013)
A new Lower Cretaceous guitarfish (Chondrichthyes, Batoidea) from the Santana Formation, northeastern Brazil. Boletim do Museu Nacional do Rio de Janeiro, Nova Série. Geologia, 76, 1–13

Villalobos-Segura, E. & Underwood, C.J. (2020)
Radiation and divergence times of Batoidea. Journal of Vertebrate Paleontology, 40(3), Article e1777147
DOI: 10.1080/02724634.2020.1777147