Horologinella biconvexa

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"biconvexa" Jiabo, 1978, p.95, pl.29, figs.20–21. Holotype: Jiabo, 1978, pl.29, fig.21. NOW Tetrachacysta. Originally Horologinella, subsequently (and now) Tetrachacysta. Age: Early Tertiary.

Parent: Horologinella

Infrataxon List:

"Horologinella biconvexa subsp. biconvexa"
"Horologinella biconvexa subsp. granulata"
"Horologinella biconvexa subsp. laevigata"

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