Genus
Eutretocystis Phleger, 1935
Selection of related publications
Phleger, F. B. 1935. Some Ordovician cystids from Russia. Bulletin of the Museum of Comparative Zoology. Harvard University Museum of Comparative Zoology LXXVI, 5, 193-201.
List of species
1. Eutretocystis acutirostris Phleger, 1935 | Kunda Stage
2. Eutretocystis similis Phleger, 1935 | Kunda Stage
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Blastozoa |
| Class | Rhombifera |
| Superfamily | Glyptocystitoida |
| Family | Echinoencrinitidae |
| Subfamily | Gonocrinites |
| Genus | Echinoencrinites |
| Erinocystis | |
| Eutretocystis | |
| Species | acutirostris |
| similis | |
| Genus | Fusicystis |
| Glaphyrocystis | |
| Proctocystis | |
| Schizocystis | |
| Scoliocystis |
References based on distribution
- Phleger, 1935 Isvos, Leningrad Oblast Kunda Stage
- Phleger, 1935 Isvos, Leningrad Oblast Kunda Stage