Oligosphaeridium dongmingense
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dongmingense He Chengquan, Zhu Shenzhao and Jin Guangxing in He Chengquan et al., 1989, p.53, pl.20, figs.11-14. Holotype: He Chengquan et al., 1989, pl.20, fig.11. Age: Early Tertiary.
Parent: Oligosphaeridium