Species
Trigonodictya cyclostomoides (Eichwald, 1855)
Synonymy list
1855     Micropora (Eschara) cystomomoides — Eichwald , pp. 459
1857     Micropora (Eschara) cystomomoides — Eichwald , pp. 27
1859     Micropora (Stictopora) cyclostomoides — Eichwald , pp. 394, fig. 24:16a-b
1860     Micropora cyclostomoides — Eichwald , pp. 394, fig. 24:16a,b
1861     Stictopora cyclostomoides m. — Eichwald , pp. 64, fig. III 16
1911     Pachydictya cyclostomoides (Eichwald) — Bassler , pp. 141, fig. text fig. 65, 66
1965     Pachydictya cyclostomoides (Eichwald), 1855 — Astrova , pp. 282, fig. LXXXVII 2
1975     Pachydictya cyclostomoides (Eichwald, 1855) — Kopajevich , pp. 59
1993     Trigonodictya cyclostomoides (Eichwald, 1855) — Gorjunova & Lavretjeva , pp. 29, 51, fig. text fig. 18a
1996     Trigonodictya cyclostomoides (Eichwald, 1855) — Gorjunova , pp. 17, fig. 8
Selection of related publications
Ernst, A., Nakrem, H. A. 2011. Stenolaemate bryozoans from the Mjøsa Formation (Late Ordovician, Katian) of Helgøya (Mjøsa), southern Norway.  Norwegian Journal of Geology   91,   3,   163-180.
Gorjunova, R. V., Lavrentjeva, V. D. 1993. Morphology and system of the cryptostome bryozoans.  Transactions of the Paleontological Institute (PIN)   257,      1-151.  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.
Eichwald, E. 1861. Paleontologiâ Rossii. Drevnij period. II. Fauna grauvakkovoj, gornoizvestkovoj i medistoslancevatoj formacij Rossii. pp. 1-521.  R. Golike (former Ya. Ionsona). 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Cryptostomata | 
| Suborder | Ptilodictyina | 
| Family | Ptilodictyidae | 
| Subfamily | Virgatellinae | 
| Genus | Trigonodictya | 
| Species | conciliatrix | 
| cyclostomoides | |
| elegans | 
References based on distribution
- Ernst & Nakrem, 2011 Bergevika, Norway Katian
- Eichwald, 1861a Haljala
- Eichwald, 1861a
- Ernst & Nakrem, 2011 Jõhvi Substage
- Gorjunova & Lavrentjeva, 1993 Jõhvi Substage
- Gorjunova, 1992 Alliku ditches, Harjumaa Jõhvi Substage
- Gorjunova & Lavrentjeva, 1993 Aluvere quarry Jõhvi Substage
- Bassler, 1911b Madise scarplet Haljala Stage