Genus
Unicornigraptus Chen & Goldman, 2017
List of species
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Infraorder | Diplograptina |
| Family | Diplograptidae |
| Subfamily | Diplograptinae |
| Genus | Archiclimacograptus |
| Diplograptus | |
| Mesograptus | |
| Prorectograptus | |
| Unicornigraptus | |
| Species | scandinavicus |
| Genus | Urbanekograptus |