Genus
Arthrostylus Ulrich, 1888
Selection of related publications
Gorjunova, R. V. 1996. Phylogeny of the Paleozoic bryozoans.  Transactions of the Paleontological Institute (PIN)   267,      1-163.  Nauka. 
Gorjunova, R. V. 1992. Morphology and system of Paleozoic bryozoans.  Transactions of the Paleontological Institute (PIN)   251,      1-152.  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.
List of species
3. Arthrostylus tenuis (James, 1878) | Pirgu Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Fenestrata | 
| Subfamily | Phylloporinina | 
| Family | Enalloporidae | 
| Genus | Aluverina | 
| Alwynopora | |
| Arthrostylus | |
| Species | conjunctus | 
| obliquus | |
| tenuis | |
| Genus | Chasmatoporella | 
| Conphylloporina | |
| Enallopora | |
| Heminematopora | |
| Kielcepora | |
| Pushkinella |