Zhou Heyi, 1985
From dinoflaj2
Zhou Heyi, 1985: Middle Oligocene dinoflagellates and acritarchs from the first member of the Shahejie Formation in the Dongying depression of northern Shandong and their paleogeographical significance. Proceedings of the First National Conference on Fossil Algae, p.1-11; pl.1; Geological Publishing House, Beijing, China. (In Chinese with English summary.)
