Species
Cyrtorizoceras tenue Strand, 1934
Synonymy list
1934     Cyrtorizoceras? tenue n. sp. — Strand , pp. 70, fig. 9:6
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Mollusca | 
| Class | Cephalopoda | 
| Subclass | Multiceratoidea | 
| Order | Oncocerida | 
| Family | Oncoceratidae | 
| Genus | Cyrtorizoceras | 
| Species | borni | 
| hariense | |
| minneapolis | |
| tenue | |
| thorsundi | 
 See also