Cephalopoda - Tarphycerida - Trocholitidae

Parent taxon: Trocholitidae according to T. Strand 1934

Sister taxa: Arkoceras, Curtoceras, Discoceras, Graftonoceras, Hardmanoceras, Jasperoceras, Litoceras, Paradiscoceras, Plectolites, Schroederoceras, Trocholites, Trocholitoceras, Wichitoceras

Subtaxa: Palaeonautilus nakholmensis

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Ecology: fast-moving nektobenthic carnivore

Distribution: found only at Nakkholmen, Skjerholmen Fm. (Ordovician of Norway)

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Specimen images are retrieved through the ePANDDA API.