From Fensome et al., 2019:
Cleistosphaeridium commixtum Jiabo, 1978, p.61–62, pl.21, figs.3–5. Holotype: Jiabo, 1978, pl.21, fig.3. NOW Impletosphaeridium. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: early Tertiary.

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