Lundberg, J.G. and B. Chernoff (1992). "A Miocene fossil of the Amazonian fish Arapaima (Teleostei, Arapaimidae) from the Magdalena River region of Colombia–Biogeographic and evolutionary implications". Biotropica. 24 (1): 2–14. DOI:10.2307/2388468. JSTOR2388468.
jstor.org
Lundberg, J.G. and B. Chernoff (1992). "A Miocene fossil of the Amazonian fish Arapaima (Teleostei, Arapaimidae) from the Magdalena River region of Colombia–Biogeographic and evolutionary implications". Biotropica. 24 (1): 2–14. DOI:10.2307/2388468. JSTOR2388468.
