From Fensome et al., 2019:
Tenua bellula Jiabo, 1978, p.51, pl.23, figs.14–16.
Holotype: Jiabo, 1978, pl.23, fig.15.
NOW Sentusidinium. Originally Tenua Eisenack, subsequently Kallosphaeridium?, thirdly Batiacasphaera, fourthly Batiacasphaera?, fifthly (and now) Sentusidinium.
Taxonomic junior synonyms: Bataicasphaera gemmata, Pyxidiniopsis consolida,
and Batiacasphaera verrucata, all according to Wood et al. (2016, p.83).
Age: early Tertiary.

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