James F. Parham; Nicholas D. Pyenson (2010). “New Sea Turtle from the Miocene of Peru and the Iterative Evolution of Feeding Ecomorphologies since the Cretaceous”. Journal of Paleontology84 (2): 231–247. Bibcode: 2010JPal...84..231P. doi:10.1666/09-077R.1.
James F. Parham; Nicholas D. Pyenson (2010). “New Sea Turtle from the Miocene of Peru and the Iterative Evolution of Feeding Ecomorphologies since the Cretaceous”. Journal of Paleontology84 (2): 231–247. Bibcode: 2010JPal...84..231P. doi:10.1666/09-077R.1.