Compositosphaeridium "polonicum", (Górka, 1965, p.306–307, pl.3, figs.5–6), Erkmen and Sarjeant, 1980, p.67; Emendations: Erkmen and Sarjeant, 1980, p.68, as Compositosphaeridium polonicum; Courtinat, 1989, p.164, as Compositosphaeridium polonicum — however see Stancliffe and Sarjeant (1990, p.203).

Combination illegitimate: generic name illegitimate. NOW Compositosphaeridium? Dodekova. Originally Hystrichosphaeridium, subsequently Compositosphaeridium Erkmen and Sarjeant (combination illegitimate), thirdly Compositosphaeridium Dodekova, fourthly (and now) Compositosphaeridium? Dodekova. Taxonomic junior synonyms: Hystrichosphaeridium (subsequently Compositosphaeridium) costatum, according to Beju (1971, p.292); Compositosphaeridium bulgaricum, according to Dodekova (1990, p.9) — however, Stancliffe and Sarjeant (1990, p.203) retained Compositosphaeridium bulgaricum and Masure in Fauconnier and Masure (2004, p.137) retained Compositosphaeridium costatum.

Holotype: Górka, 1965, pl.3, fig.5.
Age: Oxfordian.