Cephalopoda - Pseudorthocerida - Spyroceratidae

Alternative combination: Orthoceras lopingense

Full reference: A. A. Stoyanow. 1910. On the character of the boundary of Palaeozoic and Mesozoic near Djulfa. Zapiski Imperatorskago St. Peterburgskago Mineralogicheskago Obshchestva, Vtoraya Seriya 47:61-135

Belongs to Lopingoceras according to V. N. Shimanskiy 1996

Sister taxa: Lopingoceras acutanolatum, Lopingoceras bicinctum, Lopingoceras guangdeense

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell 52.9 x 12.1, shell diameter 22.3