Operculodinium spinulosum
From dinoflaj3
?spinulosum He Chengquan, 1991, p.146, pl.21, fig.5. Holotype: He Chengquan, 1991, pl.21, fig.5. Questionable assignment: He Chengquan (1991, p.146). Age: late Turonian–early Senonian.
Parent: Operculodinium