Genus
Calycotubus Kozłowski, 1949
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Family | Cyclograptidae |
| Genus | Calycotubus |
| Species | infundibulatus |
| Genus | Conitubus |
| Cyclograptus | |
| Dendrotubus | |
| Discograptus | |
| Dyadograptus | |
| Galeograptus | |
| Kozlowskitubus | |
| Multitubus | |
| Parvitubus | |
| Reticulograptus |