Bryozoa

Trematopora Hall, 1852

Selection of related publications
Ernst, A., Nakrem, H. 2014. 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.
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.
Brood, K. 1980. Upper Ordovician bryozoa from Dalmantina beds of Kinnekulle, Sweden. GFF 102, 1, 27-35. DOI:10.1080/11035898009448587
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I.
Bassler, R. S. 1911. The Early Paleozoic Bryozoa of the Baltic Provinces. Bulletin of the US National Museum 77, 1-382.
Dybowski, W. 1877. Die Chaetetiden der ostbaltischen Silur-formation.