Species
Pyrgocystis gracilis Hekker, 1939
Selection of related publications
Hecker, R. F. 1939. Pyrgocystis iz nižnego silura Leningradskoj oblasti. Izvestiya Akademii Nauk SSSR, Seriya Biologicheskaya 241-246.
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Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Eleutherozoa |
| Class | Edrioasteroidea |
| Family | Hemicystitidae |
| Genus | Pyrgocystis |
| Species | cylindrica |
| gracilis | |
| granulata | |
| procera | |
| pulkovi | |
| sulcata | |
| varia | |
| volborthi |
References based on distribution
- Hecker, 1939a Pulkovo, Leningrad District Volkhov Stage