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