Cephalopoda - Dissidocerida - Rangeroceratidae

Alternative combination: Protocycloceras rhabdiferum

Full reference: S. C. Hook and R. H. Flower. 1977. Late Canadian (Zones J, K) cephalopod faunas from Southwestern United States. New Mexico Bureau of Mines and Mineral Resources 32:1-56

Belongs to Anrangeroceras according to S. C. Hook and R. H. Flower 1977

Sister taxa: Anrangeroceras laswelli, Anrangeroceras repens, Anrangeroceras whitehallense

Ecology: fast-moving nektonic carnivore