Grossouvria
Species
Grossouvria (Poculisphinctes?) cf. G. (P.) trina (Buckman))
Occurrence: Redwater Shale in Wyoming and South Dakota
Reference: Imlay, 1982

Grossouvria (Poculisphinctes?) cf. G. (P.) trina
Photograph from Imlay, 1982
Grossouvria warmdomensis Imlay, 1953
Occurrence: Rierdon Formation (Gowericeras costidensum beds)
Reference: Imlay, 1953

Grossouvria warmdomensis
Photograph from Imlay, 1953
Grossouvria spp.
Occurrence: Rierdon Formation (Gowericeras subitum beds and Kepplerites mclearni beds)
Reference: Imlay, 1953
Grossouvria? sp.
Based on one fragment
Occurrence: Swift Formation in Little Rocky Mountains of Montana
Reference: Imlay, 1982

Grossouvria? sp.
Photograph from Imlay, 1982