From Williams et al., 2017:

[Visbysphaera Lister, 1970 p.98; Emendations: Kiryanov, 1978, p. 21; Le Hérissé, 1989, p. 198–199.
Acritarch genus.

For synonymy see Fensome et al., 1990, p.529

Type species: as Baltisphaeridium dilatispinosum, Downie, 1963 (pl.92, fig.4)] ; Visbysphaera dilatispinosa, emend. Lister, 1970