Cephalopoda - Nautilida - Grypoceratidae

Alternative combination: Nautilus (Coloceras) immanis

Full reference: F. R. C. Reed. 1931. New fossils from the Productus Limestones of the Salt Range, with notes on other species. Palaeontologia Indica, New Series 27:1-56

Belongs to Stearoceras according to F. R. C. Reed 1944

Sister taxa: Stearoceras conchiferum, Stearoceras hesperium, Stearoceras involutum, Stearoceras militarium, Stearoceras phosphoriense, Stearoceras punjabicum, Stearoceras simplex, Stearoceras sublaeve

Ecology: nektobenthic carnivore