Family
Gonioceratidae Hyatt, 1884
Aiheeseen liittyvät julkaisut
Kröger, B., Aubrechtová, M. 2018. Cephalopods from reef limestone of the Vasalemma Formation, northern Estonia (latest Sandbian, Upper Ordovician) and the establishment of a local warm-water fauna. Journal of Systematic Palaeontology 16, 10, 799-839. DOI:10.1080/14772019.2017.1347212
Sweet, W. C. 1958. The Middle Ordovician of the Oslo Region, Norway: 10. Nautiloid Cephalopods. Norsk Geologisk Tidsskrift 38, 1, 1-178.
List of species
1. Hoeloceras askeri Sweet, 1958 | Sandbian
3. Hoeloceras muroni Kröger et Aubrechtová, 2018 | Keila Stage
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Actinoceratoidea |
| Order | Actinocerida |
| Family | Actinoceratidae |
| Armenoceratidae | |
| Gonioceratidae | |
| Genus | Hoeloceras |
| Family | Huroniidae |
| Ormoceratidae | |
| Species | Sactoceras |