Impletosphaeridium 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) Williams et al., 1998, p.335. Holotype: He Chengquan et al., 1989, pl.18, fig.6. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: Early Tertiary.
Parent: Impletosphaeridium