Polysphaeridium parvum (Huang Tsengchieng, 1981) Lentin and Williams 1993
1981 Hemicystodinium parvum Huang Tsengchieng, 1981
The new combination Polysphaeridium parvum is necessitated by the acceptance of Hemicystodinium as a tax. jr. synonym of Polysphaeridium Davey and Williams, 1966, in L&W 1993
Holotype: Huang Tsengchieng, 1981, pl.2, figs.1-2
Age: Miocene