Cephalopoda - Dissidocerida - Rangeroceratidae

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

Parent taxon: Rangeroceratidae according to D. H. Evans 2005

Sister taxa: Anrangeroceras, Cyclorangeroceras

Subtaxa: Rangeroceras hintzei

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Type: Rangeroceras hintzei

Ecology: fast-moving nektonic carnivore