Oligosphaeridium dictyostilum

"?dictyostilum" (Menéndez, 1965, p.11,12, pl.2, fig.6; pl.3, figs.18–22) Eisenack and Kjellström, 1972, p.845.  Emendation: Sarjeant, 1981, p.115, as Areosphaeridium dictyostilum.  Holotype: Menéndez, 1965, pl.2, fig.6; pl.3, figs.18–20.  NOW Enneadocysta?.  Originally Hystrichosphaeridium, subsequently Oligosphaeridium?, thirdly Areosphaeridium, fourthly (and now) Enneadocysta?.  Questionable assignment: Eisenack and Kjellström (1972, p.845).  Taxonomic senior synonym: Hystrichosphaeridium (as Areosphaeridium) diktyoplokum, according to Eaton (1971, p.359) — however, Sarjeant (1981, p.115–116) retained Hystrichosphaeridium (as Areosphaeridium, now Enneadocysta?) dictyostilum.  Taxonomic junior synonyms: Areosphaeridium (now Enneadocysta) arcuatum, according to Sarjeant (1981, p.115–116) — however, Lentin and Williams (1985, p.26) retained Areosphaeridium (now Enneadocysta) arcuatum; Cordosphaeridium (as Areosphaeridium, now Cooksonidium) capricornum, according to Sarjeant (1981, p.115–116) — however, Lentin and Williams (1985, p.26) retained Areosphaeridium (now Cooksonidium) capricornum.  Age: Tertiary.

Parent: Oligosphaeridium