MacFadden, Bruce J.; Jones, Douglas S.; Jud, Nathan A.; Moreno Bernal, Jorge W.; Morgan, Gary S.; Portell, Roger W.; Pérez, Victor J.; Moran, Sean M.; Wood, Aaron R. (2017), "Integrated Chronology, Flora and Faunas, and Paleoecology of the Alajuela Formation, Late Miocene of Panama", PLoS ONE, 12 (1): 1–27,
Bibcode:
2017PLoSO..1270300M,
doi:10.1371/journal.pone.0170300,
PMID28107398
Wood, R.C.; Díaz, M.L. (1971), "Podocnemis venezuelensis, a new fossil pelomedusid (Testudines, Pleurodira) from the Pliocene of Venezuela and a review of the history of Podocnemis in South America", Breviora, 376: 1–23
MacFadden, Bruce J.; Jones, Douglas S.; Jud, Nathan A.; Moreno Bernal, Jorge W.; Morgan, Gary S.; Portell, Roger W.; Pérez, Victor J.; Moran, Sean M.; Wood, Aaron R. (2017), "Integrated Chronology, Flora and Faunas, and Paleoecology of the Alajuela Formation, Late Miocene of Panama", PLoS ONE, 12 (1): 1–27,
Bibcode:
2017PLoSO..1270300M,
doi:10.1371/journal.pone.0170300,
PMID28107398
Wood, R.C.; Díaz, M.L. (1971), "Podocnemis venezuelensis, a new fossil pelomedusid (Testudines, Pleurodira) from the Pliocene of Venezuela and a review of the history of Podocnemis in South America", Breviora, 376: 1–23