Sentusidinium densispinum
From dinoflaj3
densispinum He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.67, pl.17, figs.1–3. Holotype: He Chengquan et al., 1989, pl.17, fig.3. Age: Early Tertiary.
Parent: Sentusidinium