Tolokonnikova, Zoya A., and Petr V. Fedorov. “Morphological Features of Late Ordovician (Sandbian) Bryozoans from the Basin of Khrevitsa River (north-Western Russia) and Description of a New Species of the Genus Prophyllodictya Gorjunova, 1987”. Zootaxa 5284, no. 2 (May 11, 2023): 337–350. Accessed April 17, 2025. https://mapress.com/zt/article/view/zootaxa.5284.2.6.