Bipolaribucina biornata
From dinoflaj2
"?biornata" He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.39, pl.22, figs.18-19. Holotype: He Chengquan et al., 1989, pl.22, fig.18. Originally Bipolaribucina?, subsequently Distatodinium. Questionable assignment: He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al. (1989, p.39). Taxonomic senior synonym: Membranilarnacia paucitubata, according to Mao Shaozhi et al. (1995, p.44). Age: Early Tertiary.
Parent: Bipolaribucina
