Zhongyuandinium elongatum subsp. latum

"subsp. latum" Zhu Shenzhao, He Chengquan and Jin Guangxing in He Chengquan et al., 1989, p.73–74, pl.8, figs.16–21.  Holotype: He Chengquan et al., 1989, pl.8, fig.18.  Taxonomic senior synonym: Zhongyuandinium elongatum subsp. elongatum, according to Mao Shaozhi et al. (1995, p.63,99).  Age: Early Tertiary.

Parent: Zhongyuandinium elongatum