Zhongyuandinium biconicum
From dinoflaj3
biconicum Zhu Shenzhao, He Chengquan and Jin Guangxing in He Chengquan et al., 1989, p.72, pl.8, fig.15. Holotype: He Chengquan et al., 1989, pl.8, fig.15. Age: Early Tertiary.
Parent: Zhongyuandinium