Cephalopoda - Orthocerida - Orthoceratidae

Full reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126

Parent taxon: Orthoceratidae according to R. C. Frey 1995

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

Subtaxa: Pojetoceras floweri

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Type: Pojetoceras floweri

Ecology: nektonic carnivore