Cephalopoda - Orthocerida - Orthoceratidae

Full reference: E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1944. Ozarkian and Canadian cephalopods, longicones and summary. Geological Society of America Special Paper 58:1-226

Parent taxon: Orthocerotidae according to E. O. Ulrich et al. 1944

Sister taxa: Bifoveoceras, Chebbioceras, Ctenoceras, Infundibuloceras, Kopaninoceras, Merocycloceras, Michelinoceras, Orthoceras, Orthocycloceras, Palorthoceras, Pleurorthoceras, Pojetoceras, Pseudospyroceras, Striatocycloceras, Theoceras, Tibichoanoceras, Trematoceras, Ogygoceras, Oxfordoceras

Subtaxa: Copiceras erectum

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Type: Copiceras erectum

Ecology: nektonic carnivore