Bryozoa

Helopora Hall, 1851

Selection of related publications
Gorjunova, R. V. 1985. Morfologiâ, sistema i filogeniâ mšanok (otrâd Rhabdomesida). Transactions of the Paleontological Institute (PIN) 208, 1-152.
Männil, R. M. 1959. Stratigraphy of Ordovician Bryozoa from Estonia. Kandidaadi dissertatsioon, 3 köidet (I, II, III), pp. 1-852.
Toots, H. 1952. Bryozoen des estnischen Kuckersits. Mitt. Geol. Staatinst. Hamburg 21, , 113-137.