Cephalopoda - Ellesmerocerida - Ellesmeroceratidae

Full reference: A. G. Unklesbay and R. S. Young. 1956. Early Ordovician nautiloids from Virginia. Journal of Paleontology 30(3):481-491

Parent taxon: Ellesmeroceratidae according to C. Teichert et al. 1964

Sister taxa: Albertoceras, Annoceras, Barnesoceras, Boreoceras, Bridgeoceras, Buehleroceras, Burenoceras, Caseoceras, Clarkoceras, Clelandoceras, Conocerina, Cumberloceras, Dakeoceras, Ectenoceras, Ectenolites, Ellesmeroceras, Eorudolfoceras, Eremoceras, Hemichoanella, Lebetoceras, Levisoceras, Llanoceras, Loxochoanella, Muriceras, Oelandoceras, Oneotoceras, Pachendoceras, Quebecoceras, Robsonoceras, Ruthenoceras, Shantungendoceras, Smithvilloceras, Stemtonoceras, Ventroloboceras, Walcottoceras, Woosteroceras

Subtaxa: Chepuloceras inelegans

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Type: Chepuloceras inelegans

Ecology: nektobenthic carnivore