Achomosphaera minuta
From dinoflaj2
minuta He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.37, pl.20, fig.7. Holotype: He Chengquan et al., 1989, pl.20, fig.7. Age: Early Tertiary.
Parent: Achomosphaera