Abundance: 0.51 to 1.44% (median 0.89%)

Latitudinal range: 39.2° to 43.2°

Habitats: (4) only

Found in 4 samples

United States: Buck Spring Quarries (B-2 horizon) (Early Eocene), Elderberry Canyon Quarry (Early Eocene), Someday (Early Eocene), Deadman Butte (Early Eocene)

See also Mattimys kalicola, Mattimys sp.