Bipolaribucina conicosa

"conicosa" Jiabo, 1978, p.57, pl.29, figs.4-5.  Holotype: Jiabo, 1978, pl.29, fig.4.  NOW Impletosphaeridium.  Originally Bipolaribucina, subsequently (and now) Impletosphaeridium.  Age: Early Tertiary.

Parent: Bipolaribucina