Genus
Spinadiplograptus Hundt, 1965
Classification
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Superfamily | Retiolitoidea |
| Family | Retiolitidae |
| Subfamily | Petalolithinae |
| Genus | Agetograptus |
| Cephalograptus | |
| Comograptus | |
| Dimorphograptoides | |
| Dischidograptus | |
| Dittograptus | |
| Hercograptus | |
| Parapetalolithus | |
| Petalograptus | |
| Petalolithus | |
| Pseudorthograptus | |
| Rivagraptus | |
| Spinadiplograptus | |
| Victorograptus |