Family
Trematoporidae Miller, 1889
Selection of related publications
Ernst, A., Nakrem, H. 2015. Bryozoans from the lower Silurian (Wenlock) Steinsfjorden Formation of Ringerike, southern Norway.  Bulletin of Geosciences   90,   1,   65-87. DOI:10.3140/bull.geosci.1521
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.
Pushkin, V. I. 1987. Ordovikskie mšanki podotrâda Halloporina Belorussii i smežnyh rajonov Vostočno- Evropejskoj platformy.  Ordovik Belorussii, pp. 145-232.   Nauka i Tehnika. 
Modzalevskaya, E. A. 1986. Bryozoa of the family Dittoporidae from Ordovician of Leningrad area.  Ežegodnik Vsesoûznogo Paleontologičeskogo Obŝestva   XXX,      74-91.
Brood, K. 1981. Hirnantian (Upper Ordovician) Bryozoa from Baltoscandia.  Recent and Fossil Bryozoa: Papers Presented at the 5° International Conference on Bryozoa, pp. 19-27.   Olsen & Olsen. 
Brood, K. 1980. Upper Ordovician bryozoa from Dalmantina beds of Kinnekulle, Sweden.  GFF   102,   1,   27-35. DOI:10.1080/11035898009448587
Brood, K. 1974. Bryozoa from the Ludlovian of Bjärsjölagard in Skane.  GFF   96,   4,   381-388. DOI:10.1080/11035897409454291
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346.  Valgus. 
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.
List of species
6. Batostoma gracilis Brood, 1978 | Hirnantian
8. Batostoma lanensis Ross, 1963 | Uhaku Stage
11. Batostoma singulare Pushkin, 1976 | Rakvere Stage
13. Batostoma subgranulosum Pushkin, 1987 | Idavere Substage
14. Batostoma varians (James, 1878) | Ordovician
16. Bythopora ulrichi Hennig, 1908 | Wenlock
18. Nicholsonella faveolata Pushkin, 1987 | Idavere Substage
19. Radiotrypa gothica Brood, 1978 | Upper Ordovician
20. Trematopora borenshultensis Brood, 1978 | Hirnantian
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Trepostomata | 
| Suborder | Halloporina (suborder) | 
| Family | Bimuroporidae | 
| Capillaporidae | |
| Dittoporidae | |
| Halloporidae | |
| Mesotrypidae | |
| Monticuliporidae | |
| Phragmoporidae | |
| Ralfimartitidae | |
| Trematoporidae | |
| Genus | Aostipora | 
| Batostoma | |
| Bythopora | |
| Mesotrypina | |
| Nicholsonella | |
| Radiotrypa | |
| Trematopora | |
| Trematoporina |