Genus
Eocephalodiscus Kozłowski, 1949
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Cephalodiscida |
| Family | Cephalodiscidae |
| Genus | Aellograptus |
| Atubaria | |
| Cephalodiscus | |
| Eocephalodiscus | |
| Species | polonicus |
| Genus | Melanostrophus |
| Pterobranchites |