Impletosphaeridium liaoningense
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"liaoningense" (Jiabo, 1978, p.58, pl.29, figs.6–8) Chen et al., 1988, p.7. Holotype: Jiabo, 1978, pl.29, fig.7. NOW Peltiphoridium. Originally Bipolaribucina, subsequently Impletosphaeridium, thirdly (and now) Peltiphoridium. Age: Early Tertiary.
Parent: Impletosphaeridium