Abundance: 0.73 to 1.37%

Latitudinal range: 42.6° to 43.9°

Habitats: (2) only

Found in two samples

United States: Bloom Basin (BADL-LOC-0293) (Early Oligocene), Pratt slide (Late Miocene)

See also Calamagras angulatus, Calamagras sp.