Species
Rhynchorthoceras helgoeyense Sweet, 1958
Synonymy list
1958 Rhynchorthoceras helgoeyense Sweet, n. sp. — Sweet , pp. 135 , fig. Pl. 4:6,9; 14:4; 18:2,3; 20:3
Selection of related publications
Sweet, W. C. 1958. The Middle Ordovician of the Oslo Region, Norway: 10. Nautiloid Cephalopods. Norsk Geologisk Tidsskrift 38, 1, 1-176.
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Astroviida |
| Suborder | Lituitina |
| Family | Sinoceratidae |
| Genus | Rhynchorthoceras |
| zaddachi | |
| Species | angelini |
| beyrichii | |
| breynii | |
| conicum | |
| helgoeyense | |
| kranepuhlense | |
| rugium |
See also
References based on distribution
- Sweet, 1958 Helgøya