Palaeoperidinium ?commune Jin Guangxing, He Chengquan and Zhu Shenzhao in He Chengquan et al., 1989, p.57–58, pl.4, figs.21,22. Holotype: He Chengquan et al., 1989, pl.4, fig.22. Questionable assignment: Evitt et al. (1998, p.48). Age: Early Tertiary.