Cleistosphaeridium tianshanense
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"tianshanense" He Chengquan, 1991, p.142, pl.25, figs.4-7; text-fig.28. Holotype: He Chengquan, 1991, pl.25, fig.4. NOW Impletosphaeridium. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: Early Eocene.
Parent: Cleistosphaeridium
