Batiacasphaera biornata subsp. crassa
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subsp. crassa (Jiabo, 1978, p.52, pl.23, figs.1-4) Lentin and Williams, 1989, p.34. Holotype: Jiabo, 1978, pl.23, fig.3. Originally Tenua biornata subsp. crassa, subsequently Kallosphaeridium biornatum subsp. crassum (combination not validly published), thirdly Kallosphaeridium biparatum subsp. crassum, fourthly (and now) Batiacasphaera biornata subsp. crassa. Age: Early Tertiary. Parent: Batiacasphaera biornata
