Species
Hemiphragma rotundatum Bassler, 1911
Synonymy list
1911 Hemiphragma rotundatum, new species — Bassler , pp. 294, fig. text fig. 180
1951 Hemiphragma rotundatum Bassler, 1911 — Modzalevskaya , pp. 18
1953 Hemiphragma rotundatum Bassl. — Modzalevskaya , pp. 104
1978 Hemiphragma rotundatum Bassler, 1911 — Astrova , pp. 53
1985 Hemiphragma rotundatum Bassler — Taylor & Curry , pp. 156
1986 Hemiphragma rotundatum Bassler, 1911 — Modzalevskaya , pp. 82, fig. II 4-5
1992 Hemiphragma rotundatum Bassler, 1911 — Gorjunova , pp. 10, fig. 4
2022 Hemiphragma rotundatum Bassler, 1911 — Ernst , pp. 52, fig. 12F-H, 13A-C, Table 12
Selection of related publications
Ernst, A. 2022. Bryozoan fauna from the Kunda Stage (Darriwilian, Middle Ordovician) of Estonia and NW Russia. Bulletin of Geosciences 97, 1, 33–68. DOI:10.3140/bull.geosci.1843
Koromyslova, A. V. 2011. Bryozoans of the Latorp and Volkhov horizons (Lower-Middle Ordovician) of the Leningrad Region. Paleontological Journal 45, 8, 887-980. DOI:10.1134/S0031030111080028
Modzalevskaya, E. A. 1986. Bryozoa of the family Dittoporidae from Ordovician of Leningrad area. Ežegodnik Vsesoûznogo Paleontologičeskogo Obŝestva XXX, 74-91.
Gorjunova, R. V. 1985. Morfologiâ, sistema i filogeniâ mšanok (otrâd Rhabdomesida). Transactions of the Paleontological Institute (PIN) 208, 1-152. Nauka.
Astrova, G. G. 1978. Istoriâ razvitiâ, sistema i filogeniâ mšanok otrâda Trepostomata. Transactions of the Paleontological Institute (PIN) 169, 1-240. Nauka.
Männil, R. M. 1959. Questions of stratigraphy and bryozoans of the Ordovician of Estonia. pp. 1-852. Institut Geologii Akademii Nauk Estonskoi SSR.
Bassler, R. S. 1911. The Early Paleozoic Bryozoa of the Baltic Provinces. Bulletin of the US National Museum 77, 1-382.
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Klassificering
| 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
- Bassler, 1911b Pakri Islands
- Bassler, 1911b Tallinn
- Bassler, 1911b Kukruse Kukruse Stage
- Bassler, 1911b Kunda Stage
- Koromyslova, 2011 Volkhov Stage
- Gorjunova, 1985a Babino quarry Leningrad district Kunda Stage
- Astrova, 1978
- Modzalevskaya, 1986 Volkhov River outcrops Volkhov Stage
- Modzalevskaya, 1986 Lynna river, Leningrad Oblast Volkhov Stage
- Ernst, 2022 Väike-Pakri cliff Kunda Stage