Latitudinal range: -40.6° to -2.2°

Found in 13 samples

Argentina: Los Quiroga (Late Pleistocene)

Brazil: Jirau Paleontological Site (Late Pleistocene), Curimatãs Paleontological Site (Late Pleistocene), Lajedão do Patrício (Pleistocene - Holocene), Lagoa de Pedra (Late Pleistocene), Lage Grande Paleontological Site (Late Pleistocene), Poço Redondo (Holocene), Fazenda Charco (Late Pleistocene), Fazenda Nova (Late Pleistocene)

Chile: Pilauco (lower PB-7) (Late Pleistocene)

Ecuador: Tanque Loma (Late Pleistocene)

Uruguay: La Paz bonebed (Late Pleistocene), Arroyo del Vizcaíno (Late Pleistocene)

See also Notiomastodon platensis, Notiomastodon sp.