(1)
Tolokonnikova, Z. A.; Fedorov, P. V. 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 2023, 5284, 337-350.