Adnet, S. & Gismondi, R.S. & Antoine, P.-O. (2014)
Comparisons of dental morphology in river stingrays (Chondrichthyes: Potamotrygonidae) with new fossils from the middle Eocene of Peruvian Amazonia rekindle debate on their evolution.
Naturwissenschaften, 101(1), 33–45 DOI: 10.1007/s00114-013-1127-1