Species
Nematotrypa gracilis Bassler, 1911
Synonymy list
1911     Nematotrypa gracilis, new species — Bassler , pp. 165, fig. text fig. 83
1952     Nematotrypa gracilis Bassler — Toots , pp. 130, fig. 10:6
1985     Nematotrypa gracilis Bassler, 1911 — Gorjunova , pp. 95, fig. XII 1,2
1992     Nematotrypa gracilis Bassler, 1911 — Gorjunova , pp. 16, fig. 7
Selection of related publications
Gorjunova, R. V. 1985. Morfologiâ, sistema i filogeniâ mšanok (otrâd Rhabdomesida) [Морфология, система и филогения мшанок (отряд Rhabdomesida)].  Transactions of the Paleontological Institute (PIN)      208,   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.
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Cryptostomata | 
| Suborder | Rhabdomesida | 
| Superfamily | Rhabdomesina | 
| Family | Nematotrypidae | 
| Subfamily | Nematotrypinae | 
| Genus | Nematotrypa | 
| Species | gracilis | 
| indigena | |
| lauta | |
| spiralis | 
References based on distribution
- Bassler, 1911b Kukruse Kukruse Stage
- Bassler, 1911b Böda, Öland
- Bassler, 1911b Lasnamägi Stage
- Gorjunova, 1985a Maardu opencast mine Middle Ordovician
- Gorjunova, 1985a Suhkrumägi outcrop Middle Ordovician
- Gorjunova, 1985a Lasnamäe quarry Middle Ordovician
- Gorjunova, 1985a Aluvere quarry Haljala Stage
- Toots, 1952a Käva mine Kukruse Stage