Cephalopoda - Goniatitida - Metalegoceratidae

Alternative combination: Spirolegoceras harkeri

Belongs to Sverdrupites according to R. V. Kutygin 1996

Sister taxa: Sverdrupites amundseni, Sverdrupites baraiensis, Sverdrupites bogoslovskayae, Sverdrupites kosynskyi, Pseudosverdrupites budnikovi

Type specimen: Its type locality is GSC 26406, Lyall River, Grinnell Peninsula, Devon Island, which is in a Roadian offshore shelf sandstone/limestone in the Assistance Formation of Canada

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell width 19.8, shell diameter 36.5