Čeleď: Potamotrygonidae Garman, 1877
Rod: Heliotrygon Carvalho & Lovejoy, 2011
de Carvalho, M. R. & Lovejoy, N. R. 2011. Morphology and phylogenetic relationships of a remarkable new genus and two new species of Neotropical freshwater stingrays from the Amazon basin (Chondrichthyes: Potamotrygonidae). Zootaxa, 2776: 13–48.