Genus
Codiacystis Jaekel, 1899
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Echinodermata | 
| Subphylum | Blastozoa | 
| Class | Diploporita | 
| Superfamily | Sphaeronitida | 
| Family | Sphaeronitidae | 
| Genus | Archaegocystis | 
| Codiacystis | |
| Eucystis | |
| Haplosphaeronis | |
| Sphaeronites | |
| Tetreucystis |