JOHNSTON & FOX, 1984

Locality: MHBT Quarry, near the village of Ravenscrag, Saskatchewan, Canada.

Horizon: Lower Ravenscrag Formation.

Biostratigraphy:

Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

UA 16052: m3.

UA 16055: M3.