Maffei, F. and da Silveira, R. 2013. First record of multiple nests of yellow-spotted river turtle (Podocnemis unifilis) in a nest of black caiman (Melanosuchus niger) in Amazonia. Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais. 8, 3 (Dec. 2013), 461–465. DOI:https://doi.org/10.46357/bcnaturais.v8i3.559.