Genus
Ordogeisonoceras Frey, 1995
Selection of related publications
Kröger, B., Aubrechtová, M. 2019. The cephalopods of the Kullsberg Limestone Formation, Upper Ordovician, central Sweden and the effects of reef diversification on cephalopod diversity. Journal of Systematic Palaeontology 17, 12, 961-995. DOI:10.1080/14772019.2018.1491899
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
Kröger, B. 2013. The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden. European Journal of Taxonomy 41, 41, 1-110. DOI:10.5852/ejt.2013.41
List of species
1. Ordogeisonoceras amplicameratum (Hall, 1847) | Upper Ordovician
2. Ordogeisonoceras foerstei (Strand, 1934) | Katian
3. Ordogeisonoceras tartuensis Kröger et Aubrechtová, 2018 | Keila Stage
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Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Orthocerida |
| Suborder | Orthoceratina |
| Family | Geisonoceratidae |
| Genus | Archigeisonoceras |
| Geisonoceras | |
| Harrisoceras | |
| Ioachimoceras | |
| Kinnekulloceras | |
| Nilssonoceras | |
| Ordogeisonoceras | |
| Species | amplicameratum |
| foerstei | |
| tartuensis | |
| Ordogeisonoceras? uppsalaensis | |
| Genus | Temperoceras |
| unranked | Protokionoceras |