Genus
Zygograptus Harris et Thomas, 1941
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Suborder | Sinograptina |
| Order | Sinograptidae |
| Genus | Allograptus |
| Anomalograptus | |
| Atopograptus | |
| Holmograptus | |
| Nicholsonograptus | |
| Sinograptus | |
| Zygograptus |