Genus
Erinocystis Jaekel, 1899
Selection of related publications
Regnéll, G. 1948. Echinoderms (hydrophoridae, ophiocistia) from the Ordovician (Upper Skiddavian) of the Oslo region.  Norsk Geologisk Tidsskrift   27,      14-58.
Jaekel, O. 1899. Stammesgesihichte der Pelmatozoen. Erster Band. Thecoidea und Cystoidea. pp. 1-441.  Verlag von Julius Springer. 
List of species
1. Erinocystis angulata Jaekel, 1899 | Kunda Stage
2. Erinocystis broeggeri Regnéll, 1948 | Middle Ordovician
3. Erinocystis sculpta Jaekel, 1899 | Kunda Stage
4. Erinocystis volborthi Jaekel, 1899 | Kunda Stage
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Echinodermata | 
| Subphylum | Blastozoa | 
| Class | Rhombifera | 
| Order | Dichoporita | 
| Superfamily | Glyptocystitoida | 
| Family | Echinoencrinitidae | 
| Subfamily | Gonocrinites | 
| Genus | Echinoencrinites | 
| Erinocystis | |
| Species | angulata | 
| broeggeri | |
| sculpta | |
| volborthi | |
| Genus | Eutretocystis | 
| Fusicystis | |
| Glaphyrocystis | |
| Proctocystis | |
| Schizocystis | |
| Scoliocystis |