Referências
- ↑ Bond, M.; Kramarz, A.; Macphee, R.D.E.; Reguero, M. (2011). «A New Astrapothere (Mammalia, Meridiungulata) from La Meseta Formation, Seymour (Marambio) Island, and a Reassessment of Previous Records of Antarctic Astrapotheres». American Museum Novitates. 3718: 1–16. doi:10.1206/3718.2
- ↑ Kramarz, A.G.; Bond, M. (2009). «A new Oligocene Astrapothere (Mammalia , Meridiungulata) from Patagonia and a new appraisal of Astrapothere phylogeny». Journal of Systematic Palaeontology. 7 (1): 117–128. doi:10.1017/S147720190800268X