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Kallosphaeridium biparatum subsp. crassum

"Kallosphaeridium biparatum subsp. crassum" (Jiabo, 1978, p.52, pl.23, figs.1-4) Lentin and Williams, 1981, p.160.

TYPE: Holotype: Jiabo, 1978, pl.23, fig.3.

HISTORY: NOW: Batiacasphaera biornata subsp. crassa. 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.


Infraspecific taxa:


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