Species
Oktavites tenuispiralis (Obut)
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Family | Monograptidae |
| Genus | Oktavites |
| Species | excentricus |
| falx | |
| flagellaris | |
| hopkinsoni | |
| intermedius | |
| proteus | |
| spiralis | |
| tenuispiralis |