Map of South America. The arrow indicates Punta Peligro (Central
Patagonia, Argentina), the only known location where Sudamerica remains have been found
Koenigswald, W. v., Goin, F., &amp; Pascual, R. 1999. Hypsodonty and enamel microstructure
in the Paleocene gondwanatherian mammal Sudamerica ameghinoi. - Acta

Palaeontologica Polonica 44,3,263-300.
Wighart V. Koenigswald, Francisco Goin, and Rosendo Pascual