From Williams et al., 2017:

[Halophoridia, Cookson and Eisenack, 1962a, p. 271
Acritarch genus, according to Stover and Evitt, 1978, and Fensome et al., 1990

Type species: Halophoridia xena, Cookson and Eisenack, 1962a (pl.37, fig.6)]

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Original description: [Cookson and Eisenack, 1962]:

Description:
Shell disk-sharped, partially filled with a roughly hour-glass-shaped capsule. Wall of shell thin and delicate; wall of capsule untabulated.