Genus
Porkunioceras Kröger, 2007
Aiheeseen liittyvät julkaisut
Kröger, B. 2007. Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia. Acta Palaeontologica Polonica 52, 3, 591–608.
List of species
1. Porkunioceras tuba Kröger, 2007 | Porkuni Stage
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Multiceratia |
| Order | Oncocerida |
| Family | Graciloceratidae |
| Genus | Isbergoceras |
| Kundoceras | |
| Piersaloceras | |
| Pomerantsoceras | |
| Porkunioceras | |
| Species | tuba |
See also