Achomosphaera longispinosa
From dinoflaj2
?longispinosa He Chengquan, 1991, p.148, pl.23, fig.16. Holotype: He Chengquan, 1991, pl.23, fig.16. Questionable assignment: He Chengquan (1991, p.148). Age: Paleocene-Early Eocene.
Parent: Achomosphaera