†Rhynchorthoceras helgoeyense Sweet 1958 (mollusk)
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Cephalopoda - Lituitida - Sinoceratidae
Full reference: W. C. Sweet. 1958. The middle ordovician of the Oslo region, Norway 10. Nautiloid Cephalopods. Norsk Geologisk Tidsskrift 38:1-178
Belongs to Rhynchorthoceras according to W. C. Sweet 1958
Sister taxa: Rhynchorthoceras angelini, Rhynchorthoceras beyrichi, Rhynchorthoceras densum, Rhynchorthoceras minor, Rhynchorthoceras subcurvatum
Ecology: fast-moving nektonic carnivore
Distribution:
• Ordovician of Norway (3 collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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