Cleistosphaeridium shandongense
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"shandongense" He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.44, pl.18, figs.5-6; pl.30, figs.3-6. Holotype: He Chengquan et al., 1989, pl.18, fig.6. NOW Impletosphaeridium. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: Early Tertiary.
Parent: Cleistosphaeridium