liik
Mesotrypa egena Bassler, 1911
Sünonüümika
1911     Mesotrypa egena, new species — Bassler , lk. 198, joon. text fig. 107
1953     Mesotrypa egena Bassl. — Modzalevskaya , lk. 102
1978     Mesotrypa egena Bassler, 1911 — Astrova , lk. 100
2012     Mesotrypa egena Bassler, 1911 — Ernst & Nakrem , lk. 30, joon. 8C-I, table 4
Valik taksonit käsitlevast teaduskirjandusest
Ernst, A., Nakrem, H. 2012. Late Ordovician (Sandbian) bryozoans and their depositional environment, Furuberget Formation, Mjøsa District, Oslo Region, Norway.  Bulletin of Geosciences   87,   1,   21-44. DOI:10.3140/bull.geosci.1316
Männil, R. M. 1959. Questions of stratigraphy and bryozoans of the Ordovician of Estonia. pp. 1-852.  Institut Geologii Akademii Nauk Estonskoi SSR. 
Modzalevskaya, E. A. 1953. Trepostomaty ordovika Pribaltiki i ih stratigraficheskoe znachenie.  Trudy Vsesoûznogo Naučno-Issledovatel'skogo Geologo-Razvedočnogo Instituta (VNIGRI)         91-167.  Gostoptehizdat. 
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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Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| hõimkond | Bryozoa | 
| klass | Stenolaemata | 
| ülemselts | Palaeostomata | 
| selts | Trepostomata | 
| alamselts | Halloporina (suborder) | 
| sugukond | Monticuliporidae | 
| alamsugukond | Monticuliporinae | 
| perekond | Mesotrypa | 
| liik | bystrowi | 
| discoidea | |
| egena | |
| esthonica | |
| excentrica | |
| expressa | |
| gutta | |
| insolita | |
| mesoporica | |
| piriformis | |
| raritabulata | |
| strumaeformis | |
| suprasilurica | |
| torosa | |
| tuberculata | |
| volchovensis | |
| alamliik | orientalis | 
Levik kirjandusandmetel
- Bassler, 1911b Ämari vana paemurd Keila lade
 - Ernst & Nakrem, 2012 Sandby lade
 - Ernst & Nakrem, 2012 Furuberget, Norra Sandby lade
 - Modzalevskaya, 1953 Jõhvi alamlade