perekond
Palaeokylix Eisenack, 1932
Leitud liigid
Klassifikatsioon
| organismirühm | Biota |
| riik | Animalia |
| hõimkond | Hemichordata |
| klass | Pterobranchia |
| alamklass | Graptolithina |
| ülemselts | Graptovermida |
| selts | Camaroidea |
| Crustoidea | |
| Dendroidea | |
| Dithecoidea | |
| Graptoloidea | |
| Inocaulida | |
| Mastigograptida | |
| Rhabdopleuridae | |
| alamselts | Sinograptina |
| sugukond | Cyclograptidae |
| Cysticamaridae | |
| Dithecodendridae | |
| Thamnograptidae | |
| Tubidendridae | |
| Wimanicrustidae | |
| perekond | Calyxhydra |
| Diplohydra | |
| Flexihydra | |
| Lagenohydra | |
| Neolagarograptus | |
| Palaeokylix | |
| liik | chitinosus |
| perekond | Phragmohydra |
| Podoliagraptus |