Heterosphaeridium araneosum

"araneosum" (Brideaux, 1977, p.22–23, pl.9, figs.1–3) Islam, 1993, p.84.  Holotype: Brideaux, 1977, pl.9, figs.1–2.  NOW Circulodinium?.  Originally Cleistosphaeridium, subsequently Heterosphaeridium, thirdly (and now) Circulodinium?.  Islam (1993, p.84) cited the basionym as Hystrichosphaeridium araneosum.  Age: Aptian–Albian.

Parent: Heterosphaeridium