Abundance: 0.18 to 8.33% (median 1.30%)

Latitudinal range: -38.6° to -18.9°

Habitats: (3), tropical/subtropical savanna (1)

Found in 4 samples

Argentina: Paso Otero (paleocauce) (Pleistocene - Holocene), Cueva El Abra (Holocene)

Brazil: Uberlãndia, Abismo Iguatemi (Late Pleistocene)

See also Calomys, Calomys C. laucha-C. musculinus, Calomys callosus, Calomys cerqueirai, Calomys expulsus, Calomys laucha, Calomys musculinus, Calomys tener, Calomys tocantinsi, Calomys venustus