Enneadocysta dictyostila (Menéndez, 1965, p.11–12, pl.2, fig.6; pl.3, figs.18–22) Stover and Williams, 1995, p.109. Emendations: Sarjeant, 1981, p.115, as Areosphaeridium dictyostilum; Fensome et al., 2007, p.396–397, as Enneadocysta dictyostila.

Originally Hystrichosphaeridium, subsequently Oligosphaeridium?, thirdly Areosphaeridium, fourthly Enneadocysta?, fifthly (and now) Enneadocysta.
Stover and Williams (1995, p.109) questionably assigned this species to Enneadocysta; however Fensome et al. (2007, p396) included it without question.
Taxonomic senior synonym: Hystrichosphaeridium (now Areosphaeridium) diktyoplokum, according to Eaton (1971, p.359) — however, Sarjeant (1981, p.115) retained Areosphaeridium (now Enneadocysta?) dictyostilum.
Taxonomic junior synonyms: Enneadocysta partridgei, according to Fensome et al. (2007, p.396); Areosphaeridium (now Enneadocysta) arcuatum and Cordosphaeridium (now Cooksonidium) capricornum, both according to Sarjeant (1981, p.115–116) — however, Lentin and Williams (1985, p.26) retained Areosphaeridium (now Enneadocysta) arcuatum and Cordosphaeridium (now Cooksonidium) capricornum.

Holotype: Menéndez, 1965, pl.2, fig.6; pl.3, figs.18–20.
Age: Tertiary.