† Riccardiothallus devonicus C.Q.Guo, D.Edwards, P.C.Wu, Duckett, Hueber et C.S.Li,

Rev. Palaeobot. Palynol. 176–177: 37, 2012 (see Guo et al. 2012).

TYPE: “ Holotype: Specimen CBYn9004008 (Plate I, 2). Repository: The specimen is deposited in the Museum of Plant History, Institute of Botany, Chinese Academy of Sciences. Type locality: Zhichang Village, Gumu Town, Wenshan District, Yunnan Province, China. Stratum and age: Posongchong Formation, Early Devonian (Pragian, 407–411 Ma)” .