Brachiopoda

Parastrophinidae Schuchert et LeVene, 1929

Selection of related publications
Popov, L. E., Egerquist, E., Zuykov, M. A. 2005. Ordovician (Arenig–Caradoc) Syntrophiidine brachiopods from the East Baltic region. Palaeontology 48, 4, 739-761. DOI:10.1111/j.1475-4983.2005.00487.x
Wright, A. D. 1974. A revision of the Upper Ordovician brachiopod "Pentamerus angulosus Törnquist". GFF 96, 237-246. DOI:10.1080/11035897409454950
Rubel, M. P. 1970. Silurian Brachiopods Pentamerida and Spiriferida of Estonia.
Rõõmusoks, A. 1964. Some brachiopods from the Ordovician of Estonia. Tartu Riikliku Ülikooli Toimetised 153, II, 3-28.