Compositosphaeridium bulgaricum (Erkmen and Sarjeant 1980) Lentin and Williams 1981

bulgaricum (Erkmen and Sarjeant, 1980, p.66–67) Lentin and Williams, 1981, p.53.  Holotype: Dodekova, 1974, pl.1, figs.4–6; text-fig.1; Stancliffe and Sarjeant, 1990, pl.5, fig.5; text-fig.3, no.5, both as Compositosphaeridium costatum.  Originally Compositosphaeridium Erkmen and Sarjeant (generic name illegitimate), subsequently (and now) Compositosphaeridium Dodekova.  Taxonomic senior synonym: Hystrichosphaeridium (as Compositosphaeridium) polonicum, according to Dodekova (1990, p.9) — however, Stancliffe and Sarjeant (1990, p.203) retained Compositosphaeridium bulgaricum.  Age: Bathonian.

Parent: Compositosphaeridium_Dodekova 1974