Species
Eutretocystis acutirostris Phleger, 1935
Synonyymit
1935 Eutretocystis acutirostris sp. nov. — Phleger , pp. 201, fig. 1:10
2016 Echinoencrinites Meyer, 1826 — Paul & Rozhnov , pp. 266
Aiheeseen liittyvät julkaisut
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.
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Blastozoa |
| Class | Rhombifera |
| Superfamily | Glyptocystitoida |
| Family | Echinoencrinitidae |
| Genus | Eutretocystis |
| Species | acutirostris |
| similis |
Levinneisyys ja viitteet
- Phleger, 1935 Isvos, Leningrad Oblast Kunda Stage