Genus
Holocystites Hall, 1861
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Blastozoa |
| Class | Diploporita |
| Superfamily | Sphaeronitida |
| Family | Holocystitidae |
| Genus | Holocystites |
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Blastozoa |
| Class | Diploporita |
| Superfamily | Sphaeronitida |
| Family | Holocystitidae |
| Genus | Holocystites |