Genus
Mesotrypa Ulrich, 1893
Selection of related publications
Vinn, O., Ernst, A., Wilson, M. A., Toom, U. 2022. Symbiosis in trepostome bryozoans from the Sandbian (Late Ordovician) of Estonia.  Historical Biology   34,   6,   1029-1038. DOI:10.1080/08912963.2021.1959579
Vinn, O., Ernst, A., Wilson, M. A., Toom, U. 2019. Symbiosis of conulariids with trepostome bryozoans in the Upper Ordovician of Estonia (Baltica).  Palaeogeography, Palaeoclimatology, Palaeoecology   518,      89-96. DOI:10.1016/j.palaeo.2019.01.018
Vinn, O., Ernst, A., Toom, U. 2018. Symbiosis of cornulitids and bryozoans in the late Ordovician of Estonia.  Palaios   33,   7,   290-295. DOI:10.2110/palo.2018.018
Vinn, O., Ernst, A., Toom, U. 2018. Bioclaustrations in Upper Ordovician bryozoans from northern Estonia.  Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen   289,   1,   113-121. DOI:10.1127/njgpa/2018/0752
Vinn, O., Wilson, M. A., Mõtus, M., Toom, U. 2014. The earliest bryozoan parasite: Middle Ordovician (Darriwilian) of Osmussaar Island, Estonia.  Palaeogeography, Palaeoclimatology, Palaeoecology   414,      129-132. DOI:10.1016/j.palaeo.2014.08.021
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
Pushkin, V. 2002. Middle Ordovician bryozoa from the Podlasie-Brest Depression (Belarussian part): suborders Ceramoporina, Esthonioporina, Amplexoporina, Halloporina.  Geological Quarterly   46,   4,   411-434.
Gorjunova, R. V. 1992. Morphology and system of Paleozoic bryozoans.  Transactions of the Paleontological Institute (PIN)   251,      1-152.  Nauka. 
Pushkin, V. I. 1987. Ordovikskie mšanki podotrâda Halloporina Belorussii i smežnyh rajonov Vostočno- Evropejskoj platformy.  Ordovik Belorussii, pp. 145-232.   Nauka i Tehnika. 
Brood, K. 1985. Bryozoans from the Rönnklint section, Gotland.  GFF   107,   1,   71-75. DOI:10.1080/11035898509452616
Rõõmusoks, A. 1981. Ordovician and Silurian Strophomenida of Estonia, III. Genus Thaerodonta Wang.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   30,   2,   61-71. DOI:10.3176/geol.1981.2.04
Pushkin, V. I. 1981. To the knowledge of the genus Calloporella (Bryozoa).  Paleontologicheski Zhurnal   1981,   4,   65-73.
Astrova, G. G. 1978. Istoriâ razvitiâ, sistema i filogeniâ mšanok otrâda Trepostomata.  Transactions of the Paleontological Institute (PIN)   169,      1-240.  Nauka. 
Astrova, G. G. 1970. Novye silurijskie i rannedevonskie mšanki cistoporata i trepostomata Èstonii i Podolii.  Novye vidy paleozojskih mšanok i korallov, pp. 7-22.   Nauka. 
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346.  Valgus. 
Männil, Ralf 1961. On the morphology of the hemisphaeric zoaria of Trepostomata (Bryozoa).  ENSV TA Geoloogia Instituudi Uurimused   VI,      113-140.
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.
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. pp. XIX+1–1657.  E. Schweizerbart.  DOI:10.5962/bhl.title.52391
List of species
2. Mesotrypa discoidea Ulrich, 1893 | Ordovician
3. Mesotrypa egena Bassler, 1911 | Keila Stage
7. Mesotrypa gutta Pushkin, 1987 | Keila Stage
8. Mesotrypa insolita Pushkin, 1987 | Kukruse Stage
10. Mesotrypa piriformis (Eichwald, 1829) | Ordovician
12. Mesotrypa strumaeformis Pushkin, 1987 | Oandu Stage
15. Mesotrypa tuberculata Modzalevskaya, 1953 | Idavere Substage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Trepostomata | 
| Suborder | Halloporina (suborder) | 
| Family | Monticuliporidae | 
| Subfamily | Monticuliporinae | 
| Genus | Aspidopora | 
| Atactoporella | |
| Diazipora | |
| Homotrypa | |
| Homotrypella | |
| Kalevipora | |
| Mesotrypa | |
| Species | bystrowi | 
| discoidea | |
| egena | |
| esthonica | |
| excentrica | |
| expressa | |
| gutta | |
| insolita | |
| mesoporica | |
| piriformis | |
| raritabulata | |
| strumaeformis | |
| suprasilurica | |
| torosa | |
| tuberculata | |
| volchovensis | |
| Subspecies | orientalis | 
| Genus | Monticulipora | 
| Peronopora | |
| Prasopora | 
 See also