Cyclonephelium distinctum ssp. psilatum (Yu Jingxian and Zhang Wangping, 1980) Lentin and Williams, 1985

Now Circulodinium distinctum ssp. pszlatum. Originally Cyclonephelium distinctum var. psilatum, subsequently Cyclonephelium distinctum ssp. psilatum, thirdly (and now) Circulodinium distinctum ssp. psilatum.
Holotype: Yu Jingxian and Zhang Wangping, 1980, pl.4, fig.1
Age: Turonian-Santonian