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Impletosphaeridium conicosum

Impletosphaeridium conicosum (Jiabo, 1978, p.57, pl.29, figs.4-5) Chen et al., 1988, p.7.

TYPE: Holotype: Jiabo, 1978, pl.29, fig.4.

HISTORY: Originally Bipolaribucina, subsequently (and now) Impletosphaeridium.

AGE: Early Tertiary.


Infraspecific taxa:


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