Abundance: 0.33 to 6.94% (median 5.17%)

Latitudinal range: 27.5° to 44.3°

Habitats: (3) only

Found in 3 samples

United States: Brecht Ranch (Late Eocene), Fantasia (Early Eocene), Casa Blanca (Middle Eocene)

See also Brontotheriidae indet.