Kallosphaeridium biparatum Lentin and Williams, 1981, p.160

NOW Sentusidinium biornatum. Originally Tenua biornata, subsequently Kallosphaeridium biornatum (combination not validly published), thirdly Kallosphaeridium biparatum, fourthly Batiacasphaera biornata, fifthly (and now) Sentusidinium biornatum.
Substitute name for Tenua biornata Jiabo, 1978, p.52, pl.22, figs.21–29; pl.23, figs.1–4 (an illegitimate name).

Holotype: Jiabo, 1978, pl.22, fig.24
Age: Early Tertiary