From Williams et al., 2017:

[Lophosphaeridium, Timofeev, 1959, p. 29 ex Downie, 1963, p. 630; Emendation: Lister, 1970, p.61
Acritarch genus.
For synonymy see Fensome et al., 1990.

Type species: Lophosphaeridium rarum, Timofeev, 1959 (pl.2, fig.5)] ; ex Downie, 1963