Bivalvia

Arcoida Stoliczka, 1871

Selection of related publications
Isakar, M., Sinitsyna, I. 1985. Redescription of E. Eichwald's Ordovician bivalve species. Proceedings of the Academy of Sciences of the Estonian SSR. Geology 34, 2, 46-54.
Sinicyna, I. N. 1983. New genus of Bivalve molluscs from the Middle Ordovician of north-east of East-European platform.
Bekker, H. 1921. The Kuckers stage of the Ordovician Rocks in NE Estonia. Acta et Commentationes Universitatis Tartuensis II, 1, 1-90.