From Fensome et al., 2019:
Wetzeliella tenuivirgula "subsp. tenuivirgula". Autonym.
Holotype: Williams and Downie, 1966b, pl.19, figs.2,4; text-fig.49.
Now redundant. Originally Wetzeliella tenuivirgula subsp. tenuivirgula, subsequently Kisselevia tenuivirgula subsp. tenuivirgula, thirdly Charlesdowniea tenuivirgula subsp. tenuivirgula.

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