Subspecies
Orbignyella expansa baltica Bassler, 1911
Selection of related publications
Spjeldnaes, N. 1984. Upper Ordovician Bryozoans from Ojl Myr, Gotland, Sweden. Bulletin of the Geological Institutions of the University of Uppsala 10, 1-66.
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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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Bryozoa |
| Class | Stenolaemata |
| Superorder | Palaeostomata |
| Order | Trepostomata |
| Suborder | Amplexoporina |
| Family | Stenoporidae |
| Subfamily | Atactotoechinae |
| Genus | Orbignyella |
| Species | expansa |
| Subspecies | baltica |
References based on distribution
- Bassler, 1911b Kärdla quarry
- Spjeldnaes, 1984a Öjle Myr, Gotland Hirnantian