perekond
Schizograptus Nicholson, 1876
Klassifikatsioon
| organismirühm | Biota |
| domeen | Eukaryota |
| riik | Animalia |
| hõimkond | Hemichordata |
| klass | Pterobranchia |
| alamklass | Graptolithina |
| selts | Graptoloidea |
| alamselts | Dichograptina |
| sugukond | Dichograptidae |
| perekond | Clonograptus |
| Dichograptus | |
| Herrmannograptus | |
| Holograptus | |
| Loganograptus | |
| Mimograptus | |
| Orthodichograptus | |
| Schizograptus | |
| Triaenograptus |