Abundance: 0.12 to 1.36% (median 0.31%)

Latitudinal range: 34.8° to 44.3°

Habitats: (4) only

Found in 4 samples

Canada: Irving-Johnston (Holocene), Spillsbury Bay (Holocene)

United States: Dust Cave (Zones T and U) (Holocene), Scovill (Holocene)

See also Stizostedion, Stizostedion canadense