Abundance: 0.24 to 4.68% (median 1.11%)

Latitudinal range: -40.6° to 48.8°

Habitats: (4) only

Found in 4 samples

Canada: Pender Canal Site (trench) (Holocene)

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

China: Tianluoshan (Holocene)

Mali: Tongo Maaré Diabal (Horizon 5) (Holocene)

See also Anatinae indet.