Species
Hemiphragma priscum Pushkin, 1999
Synonymy list
1986     Dittopora annulata (Eichwald) — Modzalevskaya , fig. 1: 10-11
1986     Dittopora clavaeformis Dybowski — Modzalevskaya , fig. 1:3-5
1999     Hemiphragma priscum Pushkin, sp. nov. — Pushkin et Popov , pp. 184, fig. 1:7; 2:5-7, text fig. 8
2011     Hemiphragma priscus Pushkin, 1999 — Koromyslova , pp. 947
Selection of related publications
Pushkin, V. I., Popov, L. E. 1999. Early Ordovician bryozoans from north-western Russia.  Palaeontology   42,   1,   171-189. DOI:10.1111/1475-4983.00067
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Trepostomata | 
| Suborder | Halloporina (suborder) | 
| Family | Dittoporidae | 
| Genus | Hemiphragma | 
| Species | batheri | 
| convexa | |
| insolitum | |
| irrasum | |
| ottawaense | |
| panderi | |
| priscum | |
| pygmaeum | |
| rotundatum | |
| subirrasum | |
| tenuimurale | 
References based on distribution
- Pushkin & Popov, 1999 Vassilkovo, Leningrad Oblast Billingen Stage
- Pushkin & Popov, 1999 Pavlovsk, Leningrad Oblast Billingen Stage
- Pushkin & Popov, 1999 Obukhovo outcrop, Leningrad district Billingen Stage
- Pushkin & Popov, 1999 Pavlovsk, Leningrad Oblast Billingen Stage