Family
Phtanoncoceratidae Evans et King, 1990
Selection of related publications
Kröger, B., Mutvei, H. 2005. Nautiloids with multiple paired muscle scars from Lower-Middle Ordovician of Baltoscandia. Palaeontology 48, 4, 781-791. DOI:10.1111/j.1475-4983.2005.00478.x
List of species
1. Phtanoncoceras ellipticum (Lossen, 1860) | Ordovician
2. Phtanoncoceras oelandense Evans et King, 1990 | Ordovician
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Multiceratoidea |
| Order | Oncocerida |
| Suborder | Polyelasmoceratidae |
| Family | Acleistoceratidae |
| Diestoceratidae | |
| Graciloceratidae | |
| Hemiphragmoceratidae | |
| Jovellaniidae | |
| Karoceratidae | |
| Oncoceratidae | |
| Phtanoncoceratidae | |
| Genus | Phtanoncoceras |
| Family | Trimeroceratidae |
| Valcouroceratidae |