Cephalopoda - Oncocerida - Polyelasmoceratidae

Full reference: A. Hyatt. 1900. Cephalopoda. Textbook of Palaeontology 1:502-604

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

See also Sepkoski 2002 and Strand 1934

Sister taxa: Coelocyrtoceras, Cyrtocheilus, Danaoceras, Evlanoceras, Hipparionoceras, Macrodomoceras, Turoceras, Wadeoceras

Subtaxa: Codoceras dubium Codoceras indomitum

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Type: Cyrtoceras indomitum

Ecology: fast-moving nektobenthic carnivore

Distribution: found only at Stavnestangen, Bønsnes Fm. (Ordovician of Norway)

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Specimen images are retrieved through the ePANDDA API.