Spiniferella cornuta subsp. flexa
From dinoflaj2
subsp. flexa (He Chengquan, 1991, p.151, pl.22, fig.4) Williams et al., 1998, p.566. Holotype: He Chengquan, 1991, pl.22, fig.4. Originally Spiniferites cornutus subsp. flexus, subsequently (and now) Spiniferella cornuta subsp. flexa. Age: Paleocene. Parent: Spiniferella cornuta