Full reference: W. W. Nassichuk. 1970. Permian ammonoids from Devon and Melville Islands, Canadian Arctic Archipelago. Journal of Paleontology 44(1):77-97
Type specimen: GSC 24224. Its type locality is GSC C-1930, St. Arnaud Hils, Sabine Peninsula, Melville Island, which is in a Roadian coastal sandstone in the Assistance Formation of Canada.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell width 19.3, shell diameter 38.5