Tenua biornata Jiabo, 1978, p.52

NOW Sentusidinium biornatum. Originally Tenua biornata, subsequently Kallosphaeridium biornatum (combination not validly published), thirdly Kallosphaeridium biparatum, fourthly Batiacasphaera biornata, fifthly (and now) Sentusidinium biornatum.

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