Zhao Chuanben and Qiao Xiuyun, 1993
From dinoflaj2
Zhao Chuanben and Qiao Xiuyun, 1993: Discovery of the Muling Formation and its palynomorph assemblages in Ning'an Basin. Acta Micropalaeontologica Sinica, v.10, no.4, p.447-458. (In Chinese with English summary.)
