From Fensome et al., 2019:
Cleistosphaeridium huguoniotii ssp. huguoniotii
Autonym. Holotype: Valensi, 1955a, text-fig.2a; Fauconnier and Masure, 2004, pl.72, figs.1–3. Now redundant. Originally Cleistosphaeridium huguoniotii subsp. huguoniotii, subsequently Cleistosphaeridium? huguoniotii subsp. huguoniotii, thirdly Sepispinula huguoniotii subsp. huguoniotii.
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