Suborder
Polyelasmoceratidae Shimanskiy, 1956
List of species
1. Codoceras dubium Strand, 1934 | Ordovician
Classification
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Multiceratoidea |
| Order | Oncoceratida |
| Suborder | Polyelasmoceratidae |
| Genus | Codoceras |
| Family | Acleistoceratidae |
| Diestoceratidae | |
| Graciloceratidae | |
| Hemiphragmoceratidae | |
| Jovellaniidae | |
| Karoceratidae | |
| Oncoceratidae | |
| Phtanoncoceratidae | |
| Trimeroceratidae | |
| Valcouroceratidae |