Brachiopoda
Family

Parastrophinidae Schuchert et LeVene, 1929

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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. 1970. Silurian Brachiopods Pentamerida and Spiriferida of Estonia. pp. 1-75. Valgus.
Rõõmusoks, A. 1964. Some brachiopods from the Ordovician of Estonia. Tartu Riikliku Ülikooli Toimetised 153, II, 3-28.