Subtilisphaera ventriosa

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"ventriosa" (Alberti, 1959b, p.101, pl.9, figs.14-15) Jain and Millepied, 1973, p.27.  Holotype: Alberti, 1959b, pl.9, fig.14; Eisenack and Klement, 1964, p.239; Fensome et al., 1995, fig.1 - p.1895.  NOW Cepadinium.  Originally Deflandrea, subsequently Subtilisphaera, thirdly (and now) Cepadinium.  Taxonomic junior synonym: Cepadinium variabile, by implication in Lister and Batten (1988b, p.43), who considered Cepadinium variabile to be the senior name.  Age: Early Aptian.

Parent: Subtilisphaera