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Bipolaribucina biornata

"Bipolaribucina? biornata" He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.39, pl.22, figs.18-19.

TYPE: Holotype: He Chengquan et al., 1989, pl.22, fig.18.

HISTORY: Originally Bipolaribucina?, subsequently Distatodinium. Questionable assignment: He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al. (1989, p.39).

SYNONYM(S): Taxonomic senior synonym: Membranilarnacia paucitubata, according to Mao Shaozhi et al. (1995, p.44).

AGE: Early Tertiary.


Infraspecific taxa:


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