Palaeohystrichodinium insuetum

?insuetum Liu Zhili and Zheng Yuefang in Liu Zhili et al., 1992, p.77, pl.12, figs.8–9.  Holotype: Liu Zhili et al., 1992, pl.12, fig.8.  Questionable assignment: Liu Zhili et al. (1992, p.77).  Age: Early Tertiary.

Parent: Palaeohystrichodinium