Genus
Rivagraptus Koren' et Rickards, 1996
Aiheeseen liittyvät julkaisut
Maletz, J., Ahlberg, P., Suyarkova, A., Loydell, D. K. 2014. Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania – a standard for southern Scandinavia. GFF 136, 1, 175-178. DOI:10.1080/11035897.2013.865665
Loydell, D. K., Männik, P., Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia. Geological Magazine 140, 2, 205-229. DOI:10.1017/S0016756802007264
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian. pp. 1-267. Mokslas.
List of species
1. Rivagraptus bellulus (Törnquist, 1890) | Llandovery
2. Rivagraptus cyperoides (Törnquist, 1897) | 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 | |
| Petalolithus | |
| Pseudorthograptus | |
| Rivagraptus | |
| Species | bellulus |
| cyperoides | |
| Genus | Spinadiplograptus |
| Victorograptus |