Cleistosphaeridium bifide

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"?bifide" (Jiabo, 1978, p.51–52, pl.22, figs.7–16) Lentin and Williams, 1981, p.48.  Holotype: Jiabo, 1978, pl.22, fig.8.  NOW Sentusidinium.  Originally Tenua Eisenack, subsequently Cleistosphaeridium?, thirdly (and now) Sentusidinium.  Questionable assignment: Lentin and Williams (1981, p.48).  Age: Early Tertiary.

Parent: Cleistosphaeridium