Genus
Plegmatograptus Elles et Wood, 1908
Classification
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Family | Lasiograptidae |
| Genus | Archiretiolites |
| Brevigraptus | |
| Hallograptus | |
| Lasiograptus | |
| Neurograptus | |
| Nymphograptus | |
| Orthoretiolites | |
| Paraplegmatograptus | |
| Phormograptus | |
| Pipiograptus | |
| Plegmatograptus | |
| Yinograptus |