Genus
Petalograptus Suess, 1851
Aiheeseen liittyvät julkaisut
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian. pp. 1-267. Mokslas.
List of species
1. Petalograptus parallelus Paškevičius, 1979 | Llandovery
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Luokittelu
| Organism group | Biota |
| 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 | |
| Species | parallelus |
| Genus | Petalolithus |
| Pseudorthograptus | |
| Rivagraptus | |
| Spinadiplograptus | |
| Victorograptus |