Sheshegova, 1973
From dinoflaj3
Sheshegova, L.I., 1973: Mikrofossilii silura Podolii. In: Vozzhennikova, T.F. and Timofeev, V.B. (editors), Mikrofossilii drevneishikh otlozhenii; 3rd International Palynological Conference, Proceedings, p.40-41; Nauka, Moscow, Russia.