Batiacasphaera biornata ssp. crassa, (Jiabo, 1978), Lentin and Williams, 1989

OW Sentusidinium biornatum subsp. crassum. Originally Tenua biornata subsp. crassa, subsequently Kallosphaeridium biornatum subsp. crassum (combination not validly published), thirdly Kallosphaeridium biparatum subsp. crassum, fourthly Batiacasphaera biornata subsp. crassa, fifthly (and now) Sentusidinium biornatum subsp. crassum. See also Kallosphaeridium biornatum ssp. crassum (combination not validly published).

Holotype: Jiabo, 1978, pl.23, fig.3
Age: Early Tertiary