Carrillo-Briceño, J.D. & de Gracia, C. & Pimiento, C. & Aguilera, O.A. & Kindlimann, R. & Santamarina, P. & Jaramillo, C. (2015)
A New Late Miocene Chondrichthyan Assemblage from the Chagres Formation, Panama.
Journal of South American Earth Sciences, 60, 56–70 DOI: 10.1016/j.jsames.2015.02.001