From Williams et al., 2017:

[Schizocystia, Cookson and Eisenack, 1962a, p. 270; Emendations: Jardine et al., 1972
Acritarch genus.

Tax. sr. syn.: Tetraporina (Acritarch), by implication in Elsik (1968, p.286), who transferred the "type species", Schizocystia rugosa, to Tetraporina — however, most subsequent authors (e.g. Backhouse, 1988, p.115), retained Schizocystia.

Type species: Schizocystia rugosa, Cookson and Eisenack, 1962a (pl.37, fig.11)]

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Original description: [Cookson and Eisenack, 1962]:
Sides of the shell deeply concave, wall 3-4 µm thick with strongly marked wavy ridges that run transversely or obliquely across the surface.

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Poulsen 1996, p. 88:

Remarks:
Stover and Evitt (1978) and Fensome et al. (1990) considered Schizocystia to be an acritarch genus.
All specimens referred to Schizocystia in this study occur in nearshore and possibly also in brackish to fluvio-lacustrine facies.