Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae). Zootaxa, 2827, 1–30
The Amazonian Neogene fish fauna. In Amazonia: Landscape and Species Evolution: A look into the past(eds C. Hoorn and F. P. Wesselingh), Wiley–Blackwell Publishing Ltd., Oxford, UK
DOI: 10.1002/9781444306408.ch17